To be clear, there are at least three updates left: The first will be a mid-cycle update that includes consolidation of the two divergent codebases and a massive cleanup of the earlier chapters and the removal unused images, sounds, etc.
The second will be the epilogue which looks ahead at how your ending pans out. Effectively the final chapter.
The last will be our revamp of the first 2.5 chapters to bring things up to our state of the art. Call it the "remaster."
By next year at this time, we expect to be deep into the development of Firebreak.