Not for at least 5 years. As of now, without an external hard drive, the Wii can't handle Oblivion.
Definitely not. I don't think we need an Elder Scrolls game on the Wii. I think people would tire of it too quickly and then forget all about it. Besides, nobody plays the older ones when a newer installment comes out.
Oblivion would rock on the Wii.
But NO harddrive
And NOT powerful enough
So its not likely, but it would be interesting.
Would be kewl, but prob not.