Just stumbled upon the Loremakers Community Questions post on RSI which looks to have been uploaded today:
One thing in there which really jumped out to be was:
The finding that their home world is, atmospherically, as it was before the Wars suggests to me there will still be a very, very large population of Tevarin there and that the UEE hadn't taken over the planet quite as much as one had thought? Unless they were a small population to begin with and this is partly why the Human Empire was able to roll them over as numbers dwindled...?

Loremakers: Community Questions - Roberts Space Industries | Follow the development of Star Citizen and Squadron 42
Roberts Space Industries is the official go-to website for all news about Star Citizen and Squadron 42. It also hosts the online store for game items and merch, as well as all the community tools used by our fans.
robertsspaceindustries.com
One thing in there which really jumped out to be was:
I was certain Kaleeth was terraformed like Garron IV however it appears I was mistaken. The way I had read this particular history, it was that once victorious the UEE terraformed planet Elysium IV moving it away from what the Tevar people evolved in far enough so that the indigenous people didn't want to live there anymore and spread out across the Empire which had adopted them.Since Humans and Tevarin breathe similar atmospheres, the world was never terraformed and the planet's original environment remains intact.
The finding that their home world is, atmospherically, as it was before the Wars suggests to me there will still be a very, very large population of Tevarin there and that the UEE hadn't taken over the planet quite as much as one had thought? Unless they were a small population to begin with and this is partly why the Human Empire was able to roll them over as numbers dwindled...?