What figures should include 2 heads?
 

OK so we know that Mer-Man is going to include two heads, one representing the original toy and one that resembles the artwork from the back of the card. It's also been hinted at in several places that Man-At-Arms will include two also, with and without mustache.

So what other characters should include alternate heads?

I think Evil Lyn would be cool, one with her head dress and the other showing her short platnium blonde hair. I would also love an Alcala inspired skeletor head, as depicted in the early mini comics
http://media.comicvine.com/uploads/0...nive_super.jpg

Man-E-Faces & Two Bad! :p

Teela would be nice, as well. They could have one that's cartoon accurate and one that's toy accurate (complete with removable cobra headdress).

Prince Adam would be cool too, one with a repainted he-man head and one that more resembles the 200x design.