I can't say for sure if any newer titles weren't published by Nintendo of not. (Conker maybe?) However, last year Rare announced intention to publish their own games. I know this for fact. The reason I suggest Conker is because it was around that time. I do not know for sure. But the point is Rare had inteded on publishing their own titles keeping more of the cash.

Here's an article from MCVUK, a major UK game trade magazine:

Rare shock for Nintendo

by Stuart Dinsey


Rumours are growing that the British studio Rare could stun the games world by relaxing ties with Nintendo.

Whilst relations remain workable and current output is earmarked for GameCube, the Warwickshire outfit may want to broaden.

The most dramatic move would be Nintendo opting to sell its 49 per cent stake, or at least letting Rare develop for PS2 and Xbox.

This would increase earnings power and there would be no shortage of third parties to take Nintendo's place, or management could buy the stake back.
Rare has already shown a desire to gain freedom, with a couple of N64 games last year having been 'self-published' - the most high profile being
Conker's Bad Fur Day, which was handled by THQ.

Relations may even have become strained - not helped by the exit of senior Nintendo allies Howard Lincoln and Minoru Arakawa.

Conker's Bad Fur Day met with Nintendo disapproval, due to its adult content, and Rare failed to deliver the eagerly anticipated StarFox Adventures for GameCube launch as originally planned.

Indeed, no Rare title has yet appeared on GameCube, with StarFox, Donkey Kong Racing, Perfect Dark 2 and new adventure franchise Kameo some way off.

Nintendo UK insisted this week, however, that it was not aware of any change in relations.

"I'd be surprised if Nintendo let Rare go, as they are crucial to the success of GameCube," said Tim Weaver, editor of Future's NGC. "Second party studios such as Silicon Knights and Leftfield, plus the NoA
studio NST haven't really been that productive. So people are tending to notice that Rare is not around at the moment."

"It would certainly make sense business-wise for Rare to go multi-format, but that would be a real blow to the GameCube long-term."

MCVUK.com