Change the human male models in WoW to something that actually looks like a human, and not a smaller, pink Orc.
Another WoW one, on RP servers had GM's that actually do something to actively enforce Roleplay.
Pokémon games - give up on the 2D battle system and replace it with something more involving, like possibly taking control of the summoned Pokémon and running around fighting? enabling the ability to dodge attacks with something other then sheer, pre-programed "luck"
Also, while they're at it, make the entire game 3D and let the wild Pokémon encounters be somewhat like the trainer battles, avoidable if you see them in time.
The amont of times i've walked through a mountain path or a cave and thought to myself "If i see another God-Damn-ZUBAT or GEODUDE one more time!!"