realistic boob jiggling physics
Everything on Steam.
Everything on Steam, or some other form of medium.
I don't see how games in 5 years will be any better than they are now. What I mean is, although graphics, physics and all that stuff is improving the gameplay in 95% of games is the same as it's been for the last 10 years.
I'm a big RPG fan so I'd like to see someone do something really original and innovative in that genre.