There's A LOT of new cameras coming out promising way better video than the current DSLRs. Canon has been holding off on video improvements for over 3 years now, and if it weren't for the competition they'd milk it for as long as they could, but now they might feel forced to step up pretty soon.
The thing is they should be charging ahead. Now instead of having the market cornered they will just be barely hanging on or following. They are way too conservative, slow, internal segment and milking oriented though.