This thread is a little old, so perhaps I should ignore it, yet, I can't....
I've been following Rare on Xbox. Kameo and Conker are supposed to be out this year, and MS has even released new artwork for each recently. I think they'll make it on time, however, Rare seems to be having trouble on Xbox. They aren't as fast as MS would like, and Rare's games don't really fit in the Xbox mould. Ironically, that's why Microsoft acquired Rare in the first place, to expand it's territory, but it doesn't seem to be working.
As for Sabre Wulf, I think it looks really good. I don't know, people seem to have gone against the DKC "pre-rendered" style of graphics in recent years, but I still think DKC looks beautiful, and this game looks beautiful too...to me.

Early reviews of the game from Europe are quite positive. I think the biggest compliment from the reviews is that the game is NOT like all the other GBA platformers out there. I'll probably buy it.