Do talent points reset today?

[Arrowlad-aerie-peak]

@Wårio-area-52

this account wide or only that toon that did that quest?

Blue didn’t mention it, but it’s only the last questline at least (Harbinger):

Regarding the july 23 patch

This is correct. If you’ve completed the Harbinger questline, the quest should trigger, but you can take part in the pre-expansion event in any state at level 10 and above.