graphics have still got plenty of room to evolve.
Right now all we've seen focus on are character models, all while background detail is still not as detailed as the character models themselves, as well as LoD visuals still having something left to be desired.
Give it another decade and we'll hopefully have more focus put into those respective areas of visuals,, and maybe even a focus on amped up, realistic/interactive physics (which I feel gets the short end of the stick these days).
Mankind, in its arrogance and self-delusion, must believe they are the mirrors to God in both their image and their power. If something shatters that mirror, then it must be totally destroyed.