I like your ideas. I hate having to spam meditation after every fight. I hope they lower the number of chakra needed for each skill even if it means lowering the potency a bit. 2 chakra for purification and 4 for forbidden chakra would feel a lot better. Still allow us to stack to five chakra.

While we're throwing out ideas, I always hoped they would do something a bit more creative with fists of fire, wind, and earth. Maybe change the effect of some abilities depending on which fists we have up. Gain 2 stacks of chakra per meditate while fists of earth is active. Give each weaponskill a chance at adding greased lighting while in fists of wind. Stuff like that.