Heart of the Jade Serpent provides an extremely fun high-point in the rotation, where you get a window to rapid-fire juiced FoFs. It really should be a core part of the Windwalker experience, and not tied to a single Hero talent tree.
Instead of Weapons of Order, which is going to overwhelm us with resources again, we should see the return of Serenity (better Windwalker themed name), reworked into current the functionality of current Heart of the Jade Serpent, and given 2 charges of course.
Imagine being able to play the reworked Shado-Pan with access to on-demand Heart of the Jade Serpent! Rapid-fire Fists each with an attached Flurry. It would be amazing visually, satisfying to play, and still easy to learn and understand with no extra button bloat.
With Storm, Earth and Fire’s removal, this is the PERFECT time to make this a central focus of the spec. Blizzard, please make it happen. Heart of the Jade Serpent is a HUGE win and really should be expanded and built upon.