Well the nerf to 0dog health orb shit comes with Barbs replacing DH so you don't really need the orbs anymore, so not a big deal. Shit looks boring as all fuck though, I guess that's zDPS but eh. It's also most likely eventually getting nerfed, however doesn't seem like it'll be this time.
For soloing, well on one hand, you have a bunch of "improvements" to pet stuff with zuni, but it's half assed shit and you can't use all the good pet legendaries AND full zuni because they put all that shit on the same slots, so it's a fucking game of what piece of loot do you want to replace and all of it seems kinda so so regardless, pets just don't kill shit super fast it seems. Then on the other side of things, you have Jade Doctor which has gotten some nice buffs to the set and the poison rune on haunt and at the same time is pretty much a lot shittier than on live because of the immunity change. It doesn't look too bad but it's not like great. And every other build is still only viable for low GR/T6 farming.
So meh, doesn't seem terribly good next patch for WD, more of the same really with a few nerfs/buffs balancing each other out. There's some cool item(fetish belt and garg ring) but they don't really add much to the gameplay. Helltooth is still garbage and half of the skills are still super situational/unusable, though that's the norm for every class.
The classes that seem better off are Barb obviously by a huge marging, though I'd expect nerfs, I don't think they want people soloing GR 60+ when every other classes is at 50ish and Wizards due to Tal Rasha being a fuckton better than Firebird and also a lot more fun, while the new set is a nice novelty but probably isn't that viable past a certain level due to being reliant on arcane orb which fucking sucks(probably because of the frozen orb wiz era nerfs). DH seems more or less the same, the new set is nice for glass cannon gameplay but it's not really that much better than M6, if better at all, and Nat strafe seems it'll be ridiculously good at clearing T6 faster than any other class, though wether or not that matters isn't a sure thing. Crusaders look like they still suck, other than now having a godlike spec at killing 3 or less mobs, which is of limited use I'd say especially at the expense of a lot of survivability and Monks are virtually the same or a bit better and MIGHT have a viable meleeish build though it's kinda clunky.
That's what I'm getting from reddit posts and PTR leaderboards and shit like that.