As nice as it might be to see Dolph's head on film He-man's body I don't think it's necessary. I think most fans wouldn't mind if they didn't use his head in order to make the figure more viable for production (providing they have the rights to make it at all).

Though I'm wondering when it comes to Skeletor would they need to pay Frank Langella anything? I mean, I know it's a mask and make-up, but is it to the point where you can't see his likeness?