So, according to datamining, Tyrande and Malfurion aren't in Nazjatar at all until the fall of Azshara. Only Shandris... and Thalyssra.
Really, Blizzard? Not there... at all???? Just some Azshara jokes about her Night Warrior transformation?
Even Blightcaller has already left Darkshore, I'm sure the Wardens could remain there alone for a while during the time Tyrande and Malfurion teleported themselves to Nazjatar the way us players will be able to get in and out.
All Night Elf lore goes to Thalyssra, who we just met 1 expansion ago?
It should be time for Tyrande and Thalyssra to work together against Azshara instead of Jaina, including Elune's powers against N'Zoth ones.
Ah well, another lost opportunity in BfA, sadly