Canon's November 3rd event

Okay, Canon refreshed its top end professional DSLR with the 1D X rather quietly this week. But on November 3rd, it's going all Hollywood and trumpeting something from the LA rooftops.

What will it be? All signs point to a RED-beating pro video camera, but what specific advantages can we expect? Might it be a 1D V (for video) with just a bunch of video optimizations or a truly revolutionary, never-before-seen, ante-upping, game changer?