I'm also interested in whether they will rework the fist stances and BH. I understand they didn't want to detail out every change. But out of all the major ones, GL as a mechanic/gauge and BH along with many useless skills (stances included) were the key ones.
With the changes to GL I would assume that fists would also be changed, but I feel weary of how the developers will handle it based on their past experience. Logically, Fists should be removed as FoW wouldnt provide GL4 anymore, forcing FoF to be dominant again. Even GL becoming traits imo is a cop out, I would have preferred if just the speed became a trait and the damage increase remained and then add a decent reward for keeping GL up. Still, not that I mind its removal as a mechanic as it may be what the job needs in order to actually evolve. If they could make chakras a consistent thing then it would be possible to add back oGCDs that were lost such as IR, Howling Fist, Steel Peak etc as currently the RNG nature of the chakras eats up a lot of oGCD slots during our burst window.
I am interested in how current skills will change to accommodate for the GL changes in future, TK and Anatman are primary skills involved with GL currently so there would need to be change there and to a lesser degree RoE, Form Shift and 6SS however their secondary effects could simply be removed and they'd still be functionable. 6SS definitely needs the GCD slowdown removed though, the slowdown directly impacts when you can form shift, spam meditate and then sit in anatman if needed. Downtime just feels overly clunky and 6SS doesn't help the cause. I'd also be interested in whether the Coeurl form skills will see a different secondary effect now or if they will just be removed and be just damage and a dot.
I think everyone is weary for one reason or another since this is MNK and if the last expansion taught us anything it's that, none of these changes might even stick in 6.0. see: TK and amazing GL management in 4.2. I want to remain optimistic though that any kind of rework will be better than what we currently have.