From canon! Officially official next week Feb 8th 2010. Canon has chosen to make their announcement at the British Academy of Film and Television Arts event. The title of the event is "canon at the movies".
Could this be the 1DsMk4 with 32mp and HD video? I think the event they chose says a lot don't you? If it turns out to be a new DSLR it's kind of like canon is giving Nikon the finger in regards to who makes better HD movies.
But then again they might just be announcing a new Laforte movie shot entirely with the 5 and 7D. Or maybe they will announce a new copy machine :^)