We've discussed about that earlier in the thread which I'm not sure if you've seen. Yes there will be issues with romance but nothing that should stop the possibility of any species becoming playable. Like currently how there are restrictions for which gender can romance specific companions, there'd be further in place as to which species can or could romance a certain companion. I don't think a female Wookiee would have any problem making out with Bowdaar.
I did not read it, but I don't think that would work since Bowdaar isn't romanceable. Also, no wookie speaks Basic, so how would they fit the voices in which would designate each class? And if they did consider it, they'd have to make a new height character creation option since wookies are abnormally tall compared to other species.