Internet rumours are tonight suggesting that Call of Duty 7 will be named Black Ops, with the game being based on recent events from history.
The rumours come from ModMapNews.com, who suggest that the game will be set between WWII and the present day, with missions including visits to areas such as Cuba and South America. It has also been claimed that you will be able take control of a member of the British SAS to recreate the siege on the Iranian embassy in London in April 1980.
Finally rumours also suggest that the Zombie Mode from Call of Duty: World at War will return and the PC servers will be of the dedicated type.
This is all purely speculation of course, however it is fairly interesting, even if you should only take it with a pinch of salt.