So Wii Fit + is real???

[Cheebee]

I agree with Zucas; although this seems plausible, it would be quite early to release a sequel. Not when the original Wii Fit is still topping the worldwide charts week after week after week, practically unchallenged by anything other than Nintendo's own other Wii titles.
Releasing a sequel so soon would totally cannibalize the sales of the original. I can't begin to fathom the unheard-of profits Nintendo must be generating from Wii Fit, so it wouldn't really make sense at all to release a new game. Even announcing a new game would slow the original's sales IMO because people would wait for the newer product to release instead of getting the first one.