We've opened up Skirmishes for testing on Alpha. Please keep in mind that Skirmishes have changed in Legion. Healers will only be placed in 3v3 matches while DPS and Tanks may find themselves in either 2v2 or 3v3 matches. Good luck and have fun!
We definitely agree that healing feels undertuned in PvP right now. We'll do a pass on it.
PvP Queue Times
It's very important to us that we're able to get feedback from this process. As such, it's important you're able to find PvP matches so you can offer feedback. We'll be watching the queue situation closely as the new build comes up.
Ashran in Legion
Wintergrasp, Tol Barad and Ashran were all made during different technological eras of World of Warcraft. Ashran being the most recent, it is far easier for us to convert it to a battleground like instance supporting region wide queues. The work involved with adding that support to Wintergrasp and Tol Barad is equivalent to making them from scratch. Perhaps we will do it one day but currently our efforts are directed else where.
Zarhym No Longer With Blizzard Entertainment