Well it says reboot so that probably means something a little older maybe? Condemned is a bit too new. Killer Instinct and Killer 7 are the only games with killer in the title that ring a bell. MDK was never pinned down as Murder Death Kill I don't think.
(EDIT: Oh, wait. "Reboot." It ain't Condemned. It's too new. This is the gaming industry, not the movie industry. Any why in the hell would you have to "reboot" Killer7? You "reboot" series of games, not a single game.)
But a new Killer Instinct would be... interesting.