In my very own opinion, the best of world would be wildfire working on stacks.
Weaponskills reduces that stack, at 0 it explodes.

Both ideas for Hypercharge are good but I have a preference for 2.
Reducing wildfire and hypercharge to 3 GCDs would also makes the MCH more flexible while also creating a lot of rooms for future expansions.

6.08 is planned for next Tuesday but those will mainly be potency increases.