She seems nice.

Recently, Nintendo has made a habit of outsourcing or collaborating with other studios on many of its key titles, and it would appear that Wii Fit U is no exception.

According to Kotaku's Stephen Totilo, Pandora's Tower developer Ganbarion is involved with the forthcoming Wii U title, as its name appears on the title screen:

https://twitter.com/stephentotilo/statuses/385921857448587264

It's not known how deeply Ganbarion has been involved with development of the game at this stage. Pandora's Tower director Toru Haga recently praised the Wii U as "unique" and "exciting".

Wii Fit U is released in December, but you'll be able to download and play a one month trial version in November.