It doesn't seem like we'll get an Assassin's Creed III this year, but we might still be getting the next chapter of the series - at least it seems that way after Ubisoft accidentally posted about a game called Assassin's Creed: Revelations on their Facebook page. The post was taken down a few minutes later, but not until crafty members of Neogaf had taken screenshots.
The files the post linked to was also still available on Ubisoft's own servers, so if you want to find out more head over to the thread of Neogaf and take a look at the pictures available there.
We're of course expecting more details at E3.