The next update should introduce a new map-based world interface and remove the old interface. This will break savegames from the old versions, both demo and full-release.
I don't have a hard ETA on the map interface update, but I'm hoping I can release it by the end of April. I also don't intend to do any minor updates first; it should be next (hopefully there won't be any game-breaking bugs discovered between now and then!)
This won't be the transition to full release from early access, but I do intend this to be the 1.0 version release, ramping up to full release.
The new interface itself is still subject to change, but here are a couple teasers. The base:
Starting to explore the refinery:
More prototype screens are up on the discord.