On test server, Huntress's Power #1 has a new animation. Basically, she does a backflip kick in place. It's replacing the Spinning Backhand animation but the tooltip has not changed. Also, the effect and damage of the power seems to be the same as well.
It has been like that since GU 36 was first released on the Test Server. I noticed the new animation a few days ago when I was trying the Iconic solo, but didn't think much of it.