I have a tendency to get verbose, so I'll try and keep this as concise as possible. Also, full disclosure, I main Samurai, not Monk (though I *want* to be a Monk main, the QoL is just too low for me).
EDIT: Lol, my post was too big, and seemed to break something in the formatting. So here's a very abridged version:
- First, I'd like GL to simply be a buff Couerl attacks make. Only 1 stack, giving us what we currently get with 4 stacks.
- Second big change is Chakra. I'd like it to just use MP. Make TFC and Enlightenment cost 9000 MP (wiggle room so we don't overcap). Then all the percentage chances to open a Chakra are instead MP gains (ie Deep Meditation II would give ~1200 MP, Brotherhood would give ~500 MP, and Meditation would give 1800 MP in combat or 10,000 MP out of combat).
- As for Forms, I think they're good and should stay. Only thing I would change is Form Shift (I would make it, starting at level 54, also include Meditation's functionality).
- As for Stances, I would remove all straight dps gains from them. Instead, they would all have some QoL type buff attached to them. Earth could be nullifying direction requirements (maybe just vs opponent's for which you have enmity?); Fire could be greater range/radius on weaponskills; Air would be mostly the same (maybe recast reduction for Shoulder Tackle and/or Sprint addition?).
- Riddles would get a quick makeover, too. They would just be useful oGCD abilities. Earth would change to just a simple raid-wide damage mitigator; Air would replace Enhanced Tackle at 66, and give a 10-yalm backstep that automatically resets the recast timer on Shoulder Tackle (Shoulder Tackle should lose the attack aspect--potency would be shuffled into other abilities--and the 2nd charge); Fire could remain unchanged, but maybe gains the raid-wide buff of Brotherhood (then Brotherhood is just the "Meditative Brotherhood" part).
- Tornado Kick, Six-sided Star, and Anatman all need changes, though I don't know exactly what. Tornado Kick could have its potency reduced, then whenever you gain GL while you already have GL, it gives you a stack Combo (or name it anything else). Tornado Kick requires a stack of Combo to use, and you can stack up to 3 stacks of Combo. Six-sided Star could turn into a 3rd Couerl weaponskill (since we only use Demolish on every 3rd Couerl, we actually have room in the rotation for it) with an unshared recast timer. Anatman...I have no idea. Form Shift already does the Samurai Meditation effect. It could even just do something plain-jane, like instantly recovering 8000 MP.
EDIT: I forgot to answer the part about Gameplay Loop! Basically, keeping buffs up by correctly using the rotation is the basis. The biggest issue with GL is rebuilding after dropping because of errors/mechanics, so I would want a very quick recovery time (no more than 6 gcds). After that, the double RNG of Chakra needs to be addressed, preferably with a method that also addresses the forced possibility of overcapping. Then, I don't want dead abilities on my hotbars (so something needs to be done about TK, SSS, and Anatman). Beyond that, I think making the Stances more a flavor choice, as opposed to a "which is best dps?" choice would be great, especially if there were niche reasons that could encourage some *light* stance-dancing.