The Wii has already has quite a few motherboard changes which keeps the mod chip makers guessing, and if I recall it is an 11 wire solder so this is no easy task. As said above I expect no worse than the PS2, the most sucessful system of all time.
I think they will really worry if there is a solution like the ds. The Zelda hack is much more dangerous.
Final* Word on Game Delays:
The game will not be any better or include more content then planned. Any commnets that say so are just PR hogwash to make you feel better for having to wait.
Delays are due to lack of proper resources, skill, or adequate planning by the developer.
Do be thankful that they have enough respect for you to delay the game and maintain its intended level of quality.
*naznatips is exempt
