So far this is the best WW has felt since legion, I am a big fan of getting out of BFAs touch window, and has lots of choices with legendarys. Choices with covenants feel good (balancing pending, a few could be the right answer) and I am pretty stoked with how the class feels to play.
First thing however, tiger palm at 50 energy feels awful and slows the spec down way to much, its just not needed we cant smash buttons like other specs but we should never feel resource starved since we have 2.
Right now however its talents are pretty cookie cutter and the only real variable is dance of chi-ji and hit combo on 45 talent row even on Single Target with ChiEX leggo. What I would love to see is Strike of the Windlord and Whirling Dragon Punch get moved to baseline, you can use the ChiEx leggo as a talent (it really is spec enhancing right now and a great playstyle) and do something to lower the energy cost of tiger palm by 5 or 10 for 30 level row. Serenity needs some love, but unsure what the answer is for that, perhaps making it the old Touch of Death window (in a nerfed degree) interaction.
WW conduits feel good, I like the interaction with lowering the cooldown on xuen and big fat fist of fury damage. I think the vers to party node (Call of action venthyr) needs some love for DPS (way shorter cooldown) to give vers dps classes a bit of a carrot to drop the 3 potency tree.
For overall Covenants Nightfae is by far the most fun to play and faeline stomp feels like a much needed button for us to push when energy is coming back, however it hits like a wet noodle and the patch should extend behind your player model so you can stand in the buff safely on raid fights. Kyrian feels like the one with the most upside and most rewarding and if you line it up correctly. Right now our only real choice is Venthyr due to damage numbers, but I beg you dont nerf venthyr just get the Night Fae up to damage numbers and lower the cooldown on Kyrian to 1 minute and we have 3 really awesome choices. Necrolord is not really something I have tested.
Overall I am happy with the direction and pretty stoked to try and make this work after the up and down times of BFA. I do feel like the devs have a pulse on the spec with the leggo choices and hopefully a fun expansion to come!