Nah! StD will just take a little longer. I wouldn’t worry.
It’s just that... AoS is more narrative and seasonal, right? And we’re still in Death season, we’re still in Soul Wars mode, Slaanesh is practically still missing, and Chaos isn’t the no1 threat atm.
Archaon is making his move right now, calling forth and seeking new champions as we saw in Warcry. Chaos is in preparation, but not ready yet. Same with the release.