Usually around 90 days or less.
But the dev renders got corrupted and had to be redone from scratch.
The good news is that the next release will be a full chapter (instead of v 0.5 part one and v.6 second part).
Bad news, we have to wait a bit longer.
Current status:
Devs, in general, could really do with communication improvement.
One sentence to give your patrons a weekly progress update will take what...2min maximum of their time during a commute, queuing at the supermarket, etc...
"Progress update: Just finished setting up the images for the next scene and added them to the render queue." is always better, IMO, than nothing for the past two months.