So we're getting remakes of Generation III. HeartGold and SoulSilver had stuff from Crystal. What if Omega Ruby and Alpha Sapphire had elements from FireRed and LeafGreen? Kanto probably wouldn't make an appearance, but maybe the Sevii Islands can return! After getting your first Silver Symbol at the Battle Frontier, Scott asks you to go to One Island to help his friend Celio with an errand. He gives you a Rainbow Pass and you go to One Island. Once there, Celio asks you to find him the X and Y Hieroglyphs (which look like the logos for Pokémon X and Y) to connect the Network Machine to the distant Kalos region. Scott reminds you that since you're away from Hoenn, you won't access your storage system, but Celio corrects him, stating Red got the Ruby and Sapphire on the Network Machine a month ago, so you can easily use your storage system. Celio thinks the Game Corner owner on Two Island might have the X.
When you talk to a little girl, she asks "Where are you from? Littleroot Town? I don't know it! A month ago, a boy with a red hat told me he's from Pallet Town and I had to look it up to find that it was from Kanto. Littleroot Town is nowhere in Kanto."
When you go outside, you find a Team Rocket Grunt terrorizing civilians. You battle the Grunt and he leaves. Celio, who witnessed what happened tells you that Team Rocket is an evil organization from Kanto who is much worse than Team Aqua/Magma. They supposedly disbanded a month ago, but some members just wouldn't give up. He gives you a task of stopping them.
You go to Two Island to ask the Game Corner owner for the X Hieroglyph, but he couldn't because his daughter Lostelle was kidnapped again. He thinks Team Rocket had something to do with it. He states that he heard that they are terrorizing Three Island. You go to Three Island and see a bunch of Rocket Grunts holding civilians. After defeating the Grunts, they tell you that they had nothing to do with the kidnapping. There was a Hypno who kidnapped a girl and took her into Berry Forest. The Grunt trusts you to catch that Hypno and bring it into the Rocket Warehouse on Five Island. He gives you one of the two passwords. You go into Berry Forest and catch Hypno. You'll have to catch him. If you defeat him, he uses Recover and continues to harass Lostelle. Catch him in a Poké Ball to catch him for good. You'd need to do that for the National Pokédex because neither Drowzee nor Hypno can be found anywhere in Hoenn. Therefore, the only way to get a Drowzee is to breed this Hypno with a Ditto (as this Hypno is programmed to always be male). Lostelle thanks you and follows you back to Two Island. Her father welcomes her back and gives you the X. You go back to One Island and give the X to Celio. Now there's only the Y left. Celio hears a report that Team Rocket is at Icefall Cave. You head to Four Island.
When you talk to the Day-Care, they won't accept trainers who use their competition (the Day-Care at Route 117). So it's off limits to Hoenn Trainers. You go into Icefall Cave and help Lorelei of the Kanto Elite Four defeat the Rocket Grunts in a tag battle. They abandon their mission to catch the legendary Articuno, which was sighted here and say Moltres on Mt. Ember is worth more. When you go to the bottom of the Icefall Cave, you can catch Articuno. You then go back to One Island to Mt. Ember to stop Team Rocket from catching Moltres so that you can catch it yourself. They then move on to the last bird Zapdos, who is taking refuge in New Mauville. In the Hoenn region! Your turf! You go to Slateport to find Team Rocket announcing the formation of the Hoenn branch. You defeat the new Hoenn Team Rocket, but they were here for a mission and they head for New Mauville. You go through the original maze until you find a Rocket Grunt at the end opening a secret passageway. When you go into the secret basement, you will see the Grunt's Magneton evolve into Magnezone. He notices how the electromagnetic radiation of the big magnet in the room evolves magnet Pokémon. He then battles you with his newly evolved Magnezone and you defeat him. He then runs off into Zapdos, who is resting next to the magnet. You catch Zapdos before he could. With all three birds caught, his mission is a failure. He then disbands the Hoenn branch and heads back to the Rocket Warehouse and gives you the second password. You follow him to the Warehouse on Five Island and defeat the Rockets in there. As Team Rocket fails again, the Grunt redisbands Team Rocket and gives you the Y. You take the Y back to Celio and he connects the Network Machine to Kalos, letting the game be compatible with Pokémon X and Y. He then gives you a choice of Snivy, Tepig or Oshawott. After you choose, he states they're from the distant Unova region, which he realizes that the Network Machine isn't connected to. He gives you another errand of getting the Yin-Yang Stone. He believes the stone is in Dotted Hole near where the Sapphire originally was. You go to Six Island to Dotted Hole and keep reading Braille until you find the hole path that reaches the bottom. You pick up the Yin-Yang Stone and take it to Celio. He connects the Network Machine to Unova, allowing you to transfer Pokémon from Generation V into your game (and by extension, chain-transfer from the original Ruby and Sapphire).
He then suggests you go to the Trainer Tower. You go to Seven Island and battle trainers in the tower, until you encounter the Kanto hero Red. You defeat him and he flies back to Pallet Town (which you can't follow since Pallet Town isn't in the game). You continue your other missions of the National Pokédex and the Battle Frontier.
The Pokémon found in the Sevii Islands are from all six generations. Cryogonal can be found in Icefall Cave. Durant and Heatmor are version exclusives that appear in Mt Ember (Durant in AlphaSapphire and Heatmor in OmegaRuby). Most of the Kanto and Johto Pokémon are in the same locations as in FireRed and LeafGreen, with the Omega Ruby availability based on FireRed and Alpha Sapphire based on LeafGreen. However, there is only one Hypno in Berry Forest and no Drowzee. Litleo would be Magmar's Omega Ruby counterpart. Shinx would be Electabuzz's AlphaSapphire in the new basement of New Mauville. There are going to be roaming legendaries! Yep, Suicune, Entei or Raikou will roam the islands. But it depends on your starter. If you pick Torchic, you can catch Suicune. Mudkip faces Raikou. Treecko lovers chase Entei. They start appearing after you defeat Red. After you connect to Unova, The legendaries Tornadus, Thundarus and Landorus will roam Hoenn. After obtaining your Sinnoh starter, one of the lake guardians will fly around the entire game map, Hoenn and Sevii. The guardian will depend on the Sinnoh Pokémon you pick. If you pick Piplup, Mesprit flies around. Turtwig summons Uxie. And Chimchar lets you chase Azelf. Regigas is found in a new room in the Monean Chamber of the Tanoby Ruins and would only wake up when you bring Regirock, Regice and Registeel. Heatran is found in Mount Ember where the Ruby used to be. Any Pokémon missing from the Sevii Islands, Emerald, and XY will be in the Safari Zone. Dialga, Palkia, Giratina, Reshiram, Zekrom, Kyurem, will appear in the Sevii Altering Cave (the Altering Cave from Emerald will be absent). Which one appears based on what you have. If you found the Diamond, Dialga will appear. Pearl=Palkia, Dialga + Palkia = Giratina, Light Stone= Reshiram, Dark Stone= Zekrom, Reshiram + Zekrom = Kyurem
There will be event items that unlock event islands. Old Sea Map would unlock Faraway Island, where you catch Mew. Mystic Ticket unlocks Naval Rock, where you catch Ho-Oh and Lugia. Forest Ticket will unlock Forest Island, where you catch Celebi and Shaymin. Wish Ticket takes you to Star Island, where you catch Jirachi. Aurora Ticket unlocks Birth Island, where you catch Deoxys. Lunar Wing takes you to Fullmoon Island to catch Cresselia. Member Card takes you to Newmoon Island to catch Darkrai. Water Ticket takes you to Sea Island, where you catch Manaphy to breed Phione from. Genesis Pass to Genesis Island of Arceus. Victory Pass to Victory Island of Victini. Musketeer Pass to Musketeer Island, where you catch the legendary Musketeer quartet. Dance Pass to Music Island of Meloetta. Cyber Pass to Cyborg Island of Genesect.
So, what do you think of my idea? Would you want Team Rocket in Hoenn? How likely do you think this is?