See the thing is with Rare is that the quality of their output this generation has actually been pretty damn good.
Their N64 ports (although 4J did most of the job) were fantastic, Kameo was an excellent launch title that could have been so much more if given more time, Viva Pinata and its sequal are simply inspired and really show off Rare's old magic, and Nuts&Bolts, whilst not up to the standard of past games, was still a refreshing and fun adventure that tried something different (though I still wanted a traditional Banjo). The only real disappointment was Perfect Dark Zero, which still had its moments in single-player and a great online system, but completely missed the mark in presentation and mission cohesion.
My worry with Rare is that the company has obviously been forced to focus on casual games. Whilst I think the company will do a good job with this, there's still great talent there and they shouldn't be restricted to these types of games. Add in the fact that three of their best composers - Kirkhope, Wise and Burke - have all moved on, and sadly the Rare we knew is fading away. I can only hope that we see something from them at E3 that isn't casual - I'm definitely not expecting Banjo, and I think Kameo 2 is as good as gone, but hopefully Joanna Dark gets to put the boots on again. They've got time on their hands to actual polish the game this time around, and they've still got Beanland and Clynick, both of whom are very talented composers, so there's still hope for a great entry in that franchise. The sales of PD XBLA show that people still like the franchise.