These kind of question are hard for us to really give a definitive answer to it.
It depends on the relation between Vince and Kurt. If things go bad, Kurt will be a midcarder. If things go well, he will be in the title scene and most probably be the champ if he is playing the heel for Vince to be happy to squash HBK for example.
Also, he might be the in the main event for this year's WM. As a WWE, WHC or ECW champ. All are just predictions, and its not easy to tell.
One thing that is certain, that even if you say that he if he was here, it was going to be better, i dont think so! this is because he might lose the "it" factor he's having or just be injured or become a slower wrestler or anything that might just make him be worse.
Kurt Angle is a wrestling machine, but there is a time for the machine to corrupt and burse.