View this article on C5D news.
Video part of the canonrumors spec list (Wherever that came from) (photo part here):
Unsurpassed Image Quality
ISO 100-25600 (expandable to L:50 H1:51200, H2: 102400
Full HD Movie (ISO 100-12800 (H:25600)
High Performance Operation
3.2-type, approx.1.04m dot (3:2 wide) Clear View LCD II
High end features
Dual card slots (CF & SD)
Improved durability & water and dust resistance
Sensor Size – 36 x 24mm
ISO/Sensitivity – 100 – 25600
LCD Size – 3.2?
Video Resolution – Full HD 1080
Memory Type – Compact Flash
Connectivity – USB 2, HDMI, Mic Input, Wireless (optional)
Battery – LP-E6
File Formats – AVI, RAW, H.264, MOV, MPEG-4
Dimensions – 152 x 116 x 76mm
Doesn't sound like a Canon specs list, but maybe that's just me.
Probably taken from here (image left), and this rather sounds like it's all rumors put together into a presale offer. Good advertising, we've seen that done prior to other announcements too.
Below are more images, add them to the pool of proof that we might see the mark 3 tomorrow.