Why did I post an idea if I'm not going to work on it anytime soon?
Just to point Discovery has not yet exhausted its potential and there is still a place to grow and expand, not only constant rebalance/rework/redisign of existing content.
As for Dom'Kavash structures, what about The Shrine?
And I thought hard about which NPCs can be enemies in deep space, which humans and robods haven't habited in any way. Nomad Vagrants. InRP they were teleported far far away from Sirius sector and now are returning to home, so it even fits lore.