People get all excited at the idea of Gary Seven or Gary Mitchell, but when they hear "Khan" they yelp "remake."
That makes no fucking sense.
Khan is a genuine character, thanks both to Montalban and to a narrative which established a long history for him prior to meeting Kirk and company and a life on-screen that went on to encompass fifteen or twenty years.
Mitchell is a one-off, with no significance or life other than servicing the demands of a very specific plot; you either tell the story of How Gary Became God
or you get the fuck out. Seven is even less than that, a cardboard set-up for a TV series no one was interested in (not even to the extent of being willing to fund a stand-alone pilot).
There hasn't been a detail released - granted, there haven't been many, period - suggesting that this movie is a remake of anything