He has never been tested like this. And I don't believe we can discern a players actual personality or character through media coverage. I have no idea how he will react. Unlike Kampman, he can't be one and done.
However, the more likely scenario is that the Packers play him more at OLB/Elephant than force it. If for no other reason than Peppers isn't going to be hear for the length of CMIII's contract. And I still think the Packers and the coaches value him more than you might and will want him to be in a position to succeed if he continues to struggle.
Bud Adams told me the franchise he admired the most was the Kansas City Chiefs. Then he asked for more hookers and blow.