Why they keep making it very complicated? Announcement for a announcement date?
I have seen these be pulled in the gaming industry before, and mostly causes a lot miss information.
At this point i rather have them properly finish the module then rush.. rush.. rush... and release a broke buggy release.
For me it would be Fine scooting the module over to Q1 2018, as you can read in the devblog they hired a lot more programmers.
And it will take weeks before the team settles down on their new working place, and for the new people to get familiar with the game.
This all needs more time! This company just started expanding, they are all experiencing new stuff each day with each other.
And with the holidays coming very soon, it would be VERY BAD putting pressure on the team forcing the release in Q4 2017.
Just give the new people more time, and start 2018 with a well rested mind.