Right on.
Space Jockey, Stickman, Newborn, Queen, Powerloader, Deacon, Ripley 8, an Android, a couple of different Aliens, a couple of Preds, and new characters derived from the trophy skulls seen in the films.
There's your starting roster right there. It shouldn't take a damn epiphany to realize this game is begging to be made.
Perhaps this new MK will light a bulb over someone's head.