So of course the new pokemon will be stealing the spotlight, but I'm sure a few people are happy that Gen VI seems to be offering up older Gen pokes in the region as well as new ones - unlike BW.
Here's a list of the older Pokemon we know will be in the Kalos dex (or in some case is highly likely):The Karos Pokédex will be separated into three areas: Central Karos Pokédex, Coastal Karos Pokédex and Mountain Karos Pokédex
Central Karos Pokédex has at least 77 Pokémon in it
Coastal Karos Pokédex has at least 51 Pokémon in it
Mountain Karos Pokédex has at least 6 Pokémon in it
Which older Pokemon are you hoping appear?
How large do you think the regional dex will be? This is including both old and new pokemon--there's a separate thread for how many new pokemon you want here. Do you think the safe 150? 200? Maybe even 300 like B2W2?