>>21397591dynamic camera angles that compliment the changing environment
expanded lore and celestic town
accessible legends and areas (arceus/hall of origin, shaymin/seabreak path, regigigas/snowpoint temple)
more tag battles with strangers
POKETCH APPS
less hm blockings (inb4 casualizing)
maybe make all the introduced legends part of the regional dex instead of just national (
http://bulbapedia.bulbagarden.net/wiki/List_of_Pok%C3%A9mon_that_do_not_appear_in_any_regional_Pok%C3%A9dex)
sweet sweet gambling
internet underground + more stuff besides fossils and stones
more berry giveaways and move tutors
better trophy garden
sea area for route 222
better lakeside hotel
more routes like hgss?
updated cutscenes
trainer customizationthat's all i could come up with at the moment