I suppose the likeliness of a DSi game being released is low? Because I don't fancy buying a 3DS just to play one game. I'd like to see a R/S remake but I don't think a Pokemon Grey would really make sense... I also agree with Elite Overlord, another XD style game would be nice but it probably won't happen since The Pokemon Company seem to have moved on to the DS in recent years :/
Probably won't happen? It was for the Gamecube, not for the DS line, so my bet is that a sequel(which I also am waiting for) would be for the Wii(U) anyways.
Didn't they say that some games would be able to connect the Wii U with the 3DS?(don't quote me on that, I just recall hearing about it with the new Smash Bros due). I think it would be interesting to have another 'split' spin off with the two.