The sooner the better in my opinion. Releasing Wii 2 with skyward sword and a new wii mote with integrated motion plus would be brilliant.
You can still play it on the wii or play it in 720p on the Wii 2. Give it twice the processing power and double the memory of the ps3/360 to help with porting 3rd party titles to wii 2 while keeping the costs low. No more bickering which texture looks better on ps3/360 with wii 2 in town.
Fully backwards compatible again. Nintendo can easily release their games for both systems for a while. Add integration with the 3ds and a reworked online and nintendo has the best of the casual and hardcore market for a while for a low price. super wii?
Give the wii a price cut next holiday while launching the super wii along side, why not?
