The LinkedIn profile of James Dennett, senior IT manager at Crytek, suggests that the developer may be at work on an MMOFPS (e.g., less spells, more guns).

An item in Dennett’s resume reads, “Designing, testing and implementing as part of the development team the systems infrastructure for an MMO online game.”

Domain registration super sleuths superannuation notes that Crytek has recently purchased the following: “codename-kingdoms.com, codename-kingdoms.net, codenamekingdoms.com, codenamekingdoms.net, kingdomsthegame.com, kingdomsthegame.net, kingdoms-thegame.com, and kingdoms-thegame.net.”

There's a theme in there somewhere.