The Internet has done it once again and has pieced together a puzzle of sorts. It's all in relation to a man called Hugo Beyer, who has worked on some big games over the years, including Beatles Rock Band, Anno 1404 and the unreleased Doom 4, and Aliens: Colonial Marines at a variety of game studios such as Terminal Reality, and Liquid Development.
According to his LinkedIn page he's working at Nerve Software, as an Artist, and has listed as his projects "Call of Duty: Black Ops 2" as well as "TBA project". Nerve has previously completed contract work for Activision, including the Treyarch-developed James Bond title, Quantum of Solace, as well as the original Call of Duty: Black Ops.
This information is much more concrete and what helps the situation is Beyer has since taken down his LinkedIn page, where the information was found. Both Activision and Nerve Software have yet to respond to this news.