I don't know, I've read some comments from fans that would say "yes", but Brock is a different t beast than Punk.
Brock also had about as much training as Punk, maybe a little less.
We already know Punk's been training in BJJ, he's been working with the Gracies. Brock made it to the top, and were it not for diverticulitis, he may still be doing it.
I just don't think it's out of the realm of possibility thy he can do well. That's all.