Yes, I feel strongly that Cameron should find a way to get back on the world stage. Moto2 would be the perfect place for him if he could find a comptetitive ride.
He's got the skill, he seems to be learning how to pace a race and go for the kill at the end and he has shown that he isn't afraid to mix it up and rub some elbows to get a position, which is something he will definitely need in Moto2. Those boys are aggressive!
If this is what he really wants to do, then I think he needs to get over there and compete at the next level. Guys in Moto2 are getting more looks and more oppurtunities for GP seats than any other avenue. Just my opinion of course, but it seems logical based on what I've seen happening out there at present.