Well I think the next handheld Zelda game will be using the 3D capabilities of the 3DS. But I don't think we will see a 3D console game, if we do at all, until at least two Zeldas after Zelda Wii.
If 3D turns out to be more than just a gimmick this time and it actually catches on like it seems to be doing now, do you think that Nintendo will create any of their future Zelda games on the next console (3DS doesn't count) in 3D?