Minun Is Not United Nations (M.I.N.U.N.)

FireRed/LeafGreen/Ruby/Sapphire/Emerald/Colosseum
↓
3 years later
↓
Diamond/Pearl/Platinum/HeartGold/SoulSilver
↓
2 years later
​↓
Pokémon XD: Gale of Darkness
↓
X years later
↓
Black/White
↓
2 years later
↓
Black 2/White 2
↓
X years later
↓
???