It seems that everyday that there is a new rumour floating around and today is no exception.
Website Gamekyo is reporting that a beta for Halo 4 could be included with the upcoming Halo: Combat Evolved Anniversary Edition.
A screenshot of the menu for the game has appeared online and features an “Extras” option, and many people believe that this option houses a beta for Halo 4.
This is just pure speculation at the moment however as their has been no official word on the matter so far.