Since Legion content, I wouldn't hurry very much about the Ancient, as one can get Broot
that is slightly better (or worse if you're the one trying to kill him
). On the other hand, you still need to have a druid with access to Dreamgrove and the planting itself involves gated RNG, so YMMV.
I wait for a first post or comment saying directly "bring back MoP" in the context of pet content.
Unless there's already one, I'd like to see it.