Isn't a demake like a port of a game to a less-capable hardware?
"The term "demake" was coined by Phil Fish, aiming to describe a remake of a game to a less-capable platform than the original. Demakes"
http://en.wikipedia.org/wiki/Video_game_remake
He talked about the Dead Rising sales, this can be another "demake" for the Wii (SF4 or RE5).