RUMOR GTA 5 PC, Wii U, PS4, 720 versions to be announced on may 18th

[Soundwave]

Sonic was created by two men actually, and yes, one of them began working at NST last year:

http://www.siliconera.com/2012/04/05/sonic-the-hedgehog-co-creator-joins-nintendo-software-technology/

My personal guess is NST has been given the keys to the Donkey Kong Country franchise and are working on DKC for the Wii U. It's a big money franchise for Nintendo, probably in terms of units sold compares quite favorably with the Zelda series.