Oh, another dubious claim. So, excuse me, but...
And yet the void elves haven't been made to fit the story
at all, especially in the patch that seems almost
tailor-made to have the void elves shine... but nothing so far.
Oh, please. Nothing the void elves did couldn't have been done by high elf magisters. Teleports? Basically any mage can do that. Polymorphing? Really?
Other than the fact that they were talking about patch 8.3 when they talked about patch 8.3? And we have Shadowlands' initial storyline laid out before us, already.
Did she? Quote, please!
It's not void elf development because it never happens/happened. And WoD
was development for orcs and draenei because both main universe races had a chance of "fixing the mistakes of the past" even if it's not
their past, plus the stand they made against the Burning Legion in Draenor.
Nothing even remotely close to that has been revealed to happen in 8.3. It's just one of many visions showing void elves being mind-controlled. No development at all.
Because those are races we
met during the excursion in the Broken Isles. That doesn't make the allied races "Legion content". That's like saying the Dragon Soul raid is "WotLK content" because we access the instance through Caverns of Time (WotLK content) and happens in the Dragonblight zone (WotLK content).