Of those, a Pokemon MMORPG for Wii easily. Its the only logical step I see for the series now, unless they're just going to drag the series on with small 'improvements' on handhelds (which most likely is going to be the case since its still the best selling handheld and JRPG series out there).
However, I'd like to say that instead of a choice for Paper Mario on DS, it should be Paper Mario on Wii. They already have a Mario RPG series on handhelds that has been going quite strong, the Mario & Luigi series. So, logically, if any further Paper Mario games were to be made, it would be for Wii (or a future console). And that would also be my second choice.











