No, we have not seen Ulfar outside of his Bear Form at all. He should look like any of the Vrykul we see Northrend in the Broken Isles. The Drust (I also want to know the etymology of this term) were originally just a population of Vrykul, not a separate race. The woody appearance they currently have is from being transformed by Thros, which also needs more development.
Fun fact, the Kul Tiran Cat Form is literally a wolf, not a cat. That’s so cool when the Pack form is banned.
Also, no idea how anyone rides the Kul Tiran travel form with those huge spikes on the back.
Mayne the Thornspeakers should be state-sanctioned, and we can have Stormwind Clerics realizing that Kul Tiras is filled with heretics.