GW announced this today:
https://www.warhammer-community.com/2020/10/08/white-dwarf-welcome-to-flashpoint/
It looks great. I wish it was in the Beyond the Veil mission pack.
Frankly speaking, I have rarely felt I've bought something from
GW with as poor value as Beyond the Veil. I stupidly paid full price for it to support my local
FLGS and I am really wishing I hadn't bought it at all. A third of the book is a reprint from the core rulebook, and the remaining two thirds doesn't seem to have enough meat in it to justify the price. At the very least I wish they'd substituted this Flashpoint stuff for the reprint of the core rules - it's setting a pretty bad precedent if you think about it: if you buy all the Crusade Mission Packs you're going to get core rules reprinted in every single one.
Full disclosure: I've not played any 9th ed games yet (waiting on my son to finish enough marines to play against me). I may not be the most qualified person in the world to judge the value of Beyond the Veil. I'd still like to know what others think of this - and of the other mission packs, too.