Raven Working on Call of Duty Title?

More Call of Duty rumours today with news that Raven could also be working on a new Call of Duty title.
Spotted by MCV, Raven are currently looking to fill a job post for a Lead FX artist on a title a new title where candidates will be required to “drive the development of stunning visual effects for an established console-based, realistic, first-person military shooter”.
Activision don’t exactly have many other top first-person military shooter titles in the catalogue that are “established” so it’s quite likely that Raven could be getting more involved with the Call of Duty franchise other than the DLC which they have been creating for Black ops.
If Raven is working on a new title, let’s hope they learn from some of the horrible mistakes made by Treyarch in Black ops. I still have get the fear thinking about the PC version.