I think the only thing that could make me happier right now, is a new Battletoads being announced.
With most of the original talent behind the games no longer at Rare (hell, even David Wise, the composer, left relatively recently)? I don't think Rare has what it takes to make a new BT game, even if they were able to make other games besides shovelware for Microsoft's Kinect.
Any way, what's probably my little "Dream/Apocalyptic Game"? A new Jojo's Bizarre Adventure fighter. Likely will NEVER happen, but who knows? Perhaps with Steel Ball Run probably ready to wrap it up within the next year, the time would be right for Capcom, ASW, SOMEBODY to step up and make a new game based off of the series, or at least a Cross-over game spanning the various Arcs.