Some big spoilers since HG pushed the start date for the next expedition to the server:
Going by the trend of Content Update + Expedition patches having expeditions start much later compared to the update release, and expedition only patches having the expedition start a few hours after the drop (like Adrift), I have a good feeling 
is mostly just an expedtion, maybe one leading into Worlds Part II.
Edit: As expected, the game’s on sale on steam now too:
