You are high on hopium if you think they are going to finish the game in 3 updates. We need at least two years for the Gobbos, the Fae and finishing up character arcs.
		
		
	 
I'd say 9-10 updates should be enough, assuming they actually make some effort in an Act 1 epilogue after Rastedel that feels satisfying instead of just a cliffhanger.  A demo built for Act 2 in the last update of 2026 while they are cleaning up Act 1 after it is content complete seems the best case scenario to me.
To elaborate, I think Astarte is done in the next three updates. They are actually working on that, I think the needed sex scenes got delivered though there is likely a bad end to be added there.
Gobbos are development hell, moving at a snail's pace. But they still should be able to finish them if just barely by the end of the year and it's not like they cannot progress other arcs in the meantime.
The fey and character arcs just need a couple of events each; alternatively they need nothing cause their stories are already way too advanced for a three act story in its first act.