Blizzard said they’d update us back in 2017, and I’ve seen a few posts since then of people wondering when we will know, but we still haven’t heard anything. So what gives Blizz?
On the last (and so far, only) Q&A held in these forums, the devs mentioned they had plans to make Tyrande available once again this year (although it’s unclear if “this year” means 2019 or the Year of the Dragon). That’s all the news we’ve had.
Link: Rise of Shadows Q&A - April 22, 2019 - #299 by MeanBob-1146