I guarantee you it will not be better than any of the CM games ever released. CM games are the best football games around because they do what they wanted to do the best. Yes, I know, that sentence was confusing.
Basically, CM wants to be a manager game. It does that. Ask all the people on these (and other PES) forums how many times they've stayed up playing PES games right through the night. Now, ask the same people how many times they've done the same with CM. I guarantee you CM comes out on top. And it will continue to do so, because they will keep improving that as well.
CM games are also a series cjshp, they've been running annual installments since 1992. And I've had every one. Plus I've been getting the ISS games from it's SNES days.
I'm not trying to sound arrogant, but I simply can't see how it can be better than Championship Manager, simply because Championship Manager's scope and quality and attention to detail is so pin-point.