Licensing the properties is weird step to take. They might simply be better off continuing what they did with Retro Studios. Buy a studio here and there and have them do their own thing. If they have a great IP that would be great. Nintendo I think made a mistake letting Rare go in terms of IPs alone. They should have put down the money to keep them out of Microsoft's hands. Perfect Dark with Wii controls would have been great. Rare trying to out do Nintendo with Banjo-Kazooie (which is more home among the Nintendo IPs anyway. Always was.) would be great to see.
It's looking more and more like Nintendo has to create a mini-industry within itself to get fair treatment. In a way they seem to be going in that direction. They have their internal studios which have been changed and renamed over the last decade or so.
http://en.wikipedia.org/wiki/List_of_Nintendo_developers#Current_Development_Teams Then you have their subsidiaries.
Retro Studios, Project Sora, Nd Cube, Monolith Soft, and Brownie Brown
BB seems to be a DS developing team (hope they are still doing the Magical Starsign series and that one game wasn't the last) and Nd Cube according to wiki is still rebuilding itself after losing a lot of people. Retro, Sora, and Monolith Soft seems to be the only ones actively working on things.
Then their partner studios. The 2nd party developers as the name goes.
AlphaDream (These are the guys that did the Mario & Luigi games), Jupiter Corp., Agenda, Monster Games, Kuju Entertainment, Paon, Skip Ltd., Noise, Game Freak (Pokemon), Indieszero, SUZAK Inc., TOSE, Ambrella.
The thing is most of this group have been making Nintendo DS or WiiWare games. Two of these are responsible for the Excite games and the Donkey Kong Beat game. I wonder why Nintendo hasn't gotten some of these guys to do some Wii games (casual or hardcore or inbetween). They clearly are on better terms with Nintendo then many of these 3rd parties could ever hope to be.
So Nintendo has the teams and access to teams. It seems 3rd party developers in general (there are exceptions of course) aren't going to treat the Wii the same as the other two systems for whatever reason I wonder why Nintendo keeps holding back.