assuming MK Wii implementes IOS37, you will not be able to play the original without trucha-fixing your wii.
(i hope this does not happen to us!)
In this case you would have to backup the game and patch it :P
For patching it there are 2 options:
1. remove update and patch with IOSPatcher, but that removes the update, and maybe the new channel
2. patch with wadpatcher so it uses another IOS version, which must exist in your wii. There is a very small chance that the new systemmenu uses something only present in IOS37, and that *might* brick your wii. But thats unlikely, i will take that risk
However, if the game does not implement IOS37, you could still bypass the update by using freeloader (not 100% sure, but if your wii is up to date, it will most likely work)
