hmm... I am not sure what I would want.
I would like the wording and whatnot to be the same, but I definitely don't want to see Castle Grayskull show up as a backdrop when he does it. Maybe he could do it in front of Grayskull the first time to make it look a lot like the original cartoon, but when he is elsewhere, subbing in the castle during the sequence would look asinine.
Part of me would like to see something where his body sorta bulks up, like when Banner is hulking out, but i am not sure if it would work because the clothing needs to suddenly appear somehow. I wouldn't want ripping clothes, but i kinda like the idea to see the growing.. so not sure how that could be done.