Been some time since I have poked my head in (years now...)
I was a fairly big fan of TSL, but long since resigned myself to the knowledge that Episode 5 was going to be vaporware. That being said, I noticed that the main POStudios page has not been updated in a solid 5 years now - it still shows the most recent update as the release of Bleeding Moons, dated September 2020.
Guess I'm just wondering if POStudios has faded into obscurity...