User blog comment:Hawki/Scavenging for a Feeling/@comment-4708902-20180727115350/@comment-31277203-20180727182546

I'd be interested if Gestalt Zero came back into the picture in some way, but you have to remember that as of right now the Dominion and the Daelaam aren't on good terms (look at the ending of Shadow Wars Part 6). Even without the zerg in the mix, there's plenty of tension problems.

On the zerg end, I'm unsure about incorporating the primal zerg into all this. Remember what Zurvan said: no allegiance but to self, kill or be killed. Under that logic, even if Zagara truly kept her word to her choice in nurturing life, others would quickly point out the primal zerg can't be trusted. Don't forget (as co-op missions aren't canon), we haven't really heard anything about the primal zerg since HotS. Dehaka simply vanished from the picture. Stukov at least was given one last appearance for the sake of killing Duran.