Activision and Infinity Ward have posted a very brief teaser clip for Call of Duty: Ghosts by way of the the six second social media video sharing site Vine. Call of Duty: Ghosts on Vine
Check your expectations before clicking through however, as it's just a few moments of some under-construction footage from the game, showing some character and environment models in a raw wireframe view, obscuring any of the expected technical advancements.
Call of Duty: Ghosts is due on November 5 for PC, Xbox 360, PlayStation 3 and Wii U, and on next generation consoles when they launch.
The game is due to be formally revealed by developers at Microsoft's Xbox event on May 21st (early Wednesday morning here in Australia).