I'm still working on Part II. I've made a lot of progress this year, but I think it will still be another year or so.
I've got the main storyline working in Part II, but the rest of the galaxy needs more work (more enemies, more missions, etc.).
Part II is really ambitious, at least compared to Eternity Port. It requires totally new mechanics, items, and sovereigns, so I basically had to create everything from scratch. Plus the galaxy in Part II is much larger: At least 50 systems.
All in all, I'm very excited about Part II, but it needs more work before it is ready.
Part 1 is all about escaping the Quarantine Zone and leaving Human Space, plus it cast doubt on Domina's purpose for calling you to the core.
Part 2 takes place outside the Quarantine Zone, in the rest of the galaxy, where you can meet Domina and the Ancient Races.