I could see Insomniac being given the reigns to make a traditional Banjo game. We know Rare is working on 2 games and at least one is a new IP. So why not pass off a really great platformer to a company known for making great platformers with a similar art direction in Insomniac?
Aslo Banjo is more of their style of game than Conker is. However I would like to see a new Conker game at some point. I just love that character.