>>19215272I dont see how the timeline has any affect on the inclusion of gen 4-6 pokemon, each generation retcons the total amount of known pokemon, its not like they suddenly discover 100 new species every generation (that would imply people lived in sinnoh for hundreds of years without ever seeing a bidoof).
Im pretty sure post gen 3 pokemon will be found in the safari zone or in swarms, however, gen 4's evolutions of gen 3 pokemon will probably be included in the ORAS regional dex, unless they just dont give you the means to evolve them in that game.
