WWE is the right environment for Hogan now. He needs to come in, play the babyface Hogan character, do mic work as maybe the GM or something. Throw a couple punches here and there, cup the ear, bask in standing ovations, all that shyt.
He shouldn't be thinking about creative control, and for damn sure he shouldn't actually wrestle a full match again. Seriously, he's pretty much a physical wreck at this point. Still muscular, but the wrong bump could put him in a wheelchair.
He's too involved in storylines in TNA, his character seems stressed out all the time. He's always got some storyline problem to deal with, he looks like he hasn't slept in years. His fans wanna see Hogan being Hogan and having fun out there.