The next Xbox is going to slay all in its path here in the states when it first launches. That is the only guarantee anyone can really give.
That's not really guaranteed...
I believe they said they made money off the first, despite low sales all around. I don't see how making it exclusive to one console was ever a good idea. A new console at that. Their shareholders should be asking the person that made that particular decision what the hell he was thinking.
While I kinda agree with you, Ubisoft made a lot of money off the Wii and they are planning on taking advantage of the NFC to pull in kids(and collectors) so its not that crazy of a decision.