My dream game has always been a game that combines the most impressive technologies with open ended gameplay. So like impressive modern graphics and; physics and; Red Faction-like destructible environments and; procedurally generated content. All wrapped in a good-enough gameplay package like an RPG or something.
I realize all these technologies come at great trade-offs, but the dream is a good balance.
It's mostly the destructible environments from Red Faction Guerilla that I'd want in other games.