I think if they were to revise the rules, the Strife/Composure Fatigue/Endurance brings no end of confusion to players who are used to other systems. I think the system just needs a bit of refinement and clarity. Personally I'd prefer they rework it so you just have Damage targeting Endurance and Composure. And Critical Wounds / Unmasking. And the sheet should have tracking boxes like every other RPG system where you just tick them off. I'd also Unify Wounds so it's for all rings, might make it deadlier, but also simpler, and similar to Warhammer Fantasy for example. The revised book should have a reorganization of text, with some important text-boxes actual sections for clarity. The rules options in the FAQ should also be included. The entire conflicts chapter should be rewritten and refined. But, it mostly should be compatible with existing 5th edition content, just easier to use.

I think Naga and Nezumi need their own Path of Waves like supplement, remember the dragon book is only 3 chapters (I suspect).