City of Heroes Dev Back Alley Brawler has been a very busy guy of late. When he's not fending off incoming questions like a tank herding Rikti monkeys, he's working on animations and visual effects. Recently, several powers have seen improvements to their animation speed, allowing players to beat the tar out of stuff much faster than they used to.
Katana was recently improved in this way, and now the set in the spotlight is Martial Arts, which hasn't seen any love for a long, long time. The little pauses have been shaved off, meaning that the kicks and punches now flow beautifully. Forum poster Tormentoso has put together a little demonstration.