I have no rumors to add, or fake rumors to add only opinions (sorry to bring us down)
I have a 360 and I really enjoy netfix. If the Wii got a netflix channel, I think it would benefit Nintendo and Netflix. Technically speaking there isn't a good reason why Netfix isn't on every web enabled device. As long as Nintendo can secure a contact with Netflix I don't see why it won't happen.
I also like the fact that the 360 can stream netflix in "HD" and dynamically change the bitrate based on network speeds. While I doubt the Wii can stream HD, even if they just defaulted to a decent bit rate that would be fine.
If they do release a Wii HD, or a Wii2, I'd be very exited to see what Nintendo has planned, especially for the impact on the Homebrew scene. If they radically changed things, and tried some new ideas I may consider getting the new Wii, but if the next Wii is just the same thing with new wrapping paper I don't think many people will be interested in it. And since the Wii was such a success for Nintendo I doubt they'll try any thing new.
I hope all the money Nintendo is making off of the Wii is going to some awesome development for their next gen.