Treyarch is working on a version of Call of Duty for "a new console", according to a recent recruitment call.
It doesn't give much else away, other than that the role includes adapting "graphics and other major systems in our engine to a new platform".
Treyarch expects candidates to have experience on the PlayStation 3 or Xbox 360.
A Vita, 3DS and/or Wii U port of their next effort all seem like safe bets, but perhaps the studio has already upped tools on the next round of hardware from Microsoft and Sony.
The Black Ops developer hasn't announced details of its next Call of Duty title but, providing it stays true to past form, expect it to launch in November 2012.