Source? AFAIK, I doubt there will be another viable exploit for the Wii U, it'll likely be the 3DS BS all over again.
Assuming you're right, what would then be the point at all, except for piracy? Few people own a Wii U in the first place, and fewer still will take the necessary steps to avoid updating - not exactly gonna be a huge homebrew scene if that's the case. Since I'm quite happy to pay for my Wii U games, I'm currently enjoying the quick start etc features of this update without a care in the world!