I can't see him fitting in at Marvel, but if he'd stick to their script and overall vision I could maybe see him doing Ka-Zar. He does action, including action with CG characters, very well. It's everything else that can be (in some cases, VERY) weak. Get him to stick to a good script that happens to have a dude and his saber tooth cat fighting some dinosaurs and it could have some potential.
Bay and dinosaurs also give Ka-Zar a legit shot at the billion dollar club, so there's that. Audiences like dinosaurs, it seems, and Bay's got some maxed out critic armor.