It looks like they took out the positional requirement of swipe for bears, so you will be able to hit things behind you or to the sides. I also tested this on a testing dummy in ironforge, and I can swipe the target with my tail touching it, so yes, I can swipe you with my tail!
Thus, swipe is becoming more like the warrior’s whirlwind, and should probably have the same range.
This seems like a huge buff to bear form tanking. No longer do you have to worry about having the exact right positioning for tanking multiple mobs! However, some people are pointing out range problems for the new swipe, which may or may not be a bug.
Disclaimer: You should not try tanking by facing away from your targets, anyway. *wink*
In addition, Pounce now only shares diminishing returns with rogue’s Cheap Shot stun, instead of all stuns.