Developer System Era released a new trailer for Astroneer during E3 which announced its 1.0 release out of Early Access this December.
The 1.0 release is planned to have expanded multiplayer beyond the current 4-player co-op with the potential for dedicated servers.
Goals will also be coming to the game, optional missions to follow for those who prefer suggestions for what to do, these won't be quests and there won't be any campaign but players who want a more directed experience will have a path to follow if they are looking for one.
Another feature planned is player customisation but no further details have been shared about this yet.