My wishlist of things that I haven't heard announced so far:
-Casino for group Poker, Blackjack, Slots etc. I enjoyed the poker in RDR. -Wingsuit, because I loved it in Far Cry 3. -Ability to buy a houses instead of only apartments. -More variety in living spaces and some customization in living spaces. -Ability to go bowling or play pool with your cousin. -More TV shows and movies. -More vehicles and customization abilities. -Bring back vigilante/assassination missions.