I've been keeping an eye on a couple lenses with the current rebate cycle ending today (Feb 4th) but I just saw this Canon flyer in my local paper. Here is a picture with the various discounts, valid Feb5-Mar3. It's not listed on the sites yet, and it doesn't appear all of the currently discounted lenses are listed (mostly just the L-series lenses). I can't confirm but if it's true, all of these lenses have a 'double-rebate' discount which is valid when purchased with an eligible EOS camera (they show the 5DII, 7D and 60D at the bottom) So if you were thinking about picking up a body anyway, maybe check it out tomorrow.
I guess that really means we won't get any new announcements until the end of February