“This time around we did Oblivion and again we designed a game that’s really going to push some limits and would do the things we thought next-gen consoles might be able to do. When 360 dev kits were available, we did it on them because it was available. It’s not really going to run on a Wii for example, but if it could we would put it there. Our philosophy is to make a game and make it available to as many people as possible. We’re not looking to limit who can play a game. We want to make something that’s fun and we want as many people as possible to play it.” – Bethesda’s Pete Hines
It would be a good time, but Oblivion is best viewed on 360/PS3. I wouldn’t want a Wii version if they had to downgrade graphics. It just wouldn’t be the same.