I'd like to see the .Hack//Sign anime become a real game, I read something about them making it but it died for some reason I forgot... Seemed like an amazing idea.
I found Animal Crossing very addicting... Just as Harvest Moon games had me attached to whatever screen they happen to be playing on... While they're not exactly action type games, I can come back to it quite a bit and still get some kind of joy from it... Animal Crossing seasons and events changing along with real time, and real days of the week, was really a nice feel... If there could be a remake or something of that type of game, maybe even a bit of the Sims style customizations with houses... Less cartoonie look might be nice... Harvest Moon's relationships were real nice and slow paced, gave me alot to look forward to... I don't know xD I'm horrible at explaining this, just making a block of text, but I'm sure the idea is across...
The .Hack//Sign game though would be amazing, virtual reality and everything included. This is more of a random rant... >_>