I imagine some of the things (based off other changes) that could possibly coming would be:

1. Removal of Life Surge (Less likely to be the case because it's not used nearly as much, but it's fairly similar to Kaiten at a base level)
2. Have Fang and Claw replace Heavens' Thrust
3. Have Wheeling Thrust replace Chaos Thrust
4. Remove Dragonfire Dive, Give Spineshatter dive +1 charge, buff potency a little, change Spineshatter Dive to an AE attack (current potency + fall off)

I really can't think of anything else that wouldn't largely change the way that it plays. I'm scared.