The game's still in an alpha state, of course there will be many additions to come both in terms of story and perhaps new factions (they have hinted towards it in the Discord server, but not for the 1.0/release version). The derelicts, and some technology and planetary features have already added new pieces to the story though
I have few people who would get the once another race is added. On a side note, I appreciate the update, and the UI looks better than ever! The main hold it back is the lack of the other races. Most of the Sins 1 players complain about it being on Epic, but I guarantee they will change their minds once they see another race added.
As you can see in the timeline on the store, Vasari is bound to come in Fall 2023. Again, on the Discord it was hinted that they would arrive with two separate updates and likely in September.