Of course!
TL;DR:
The Sith Empire broke down to infighting between NFU (The Empire) and Sith (Maw/Wots/Sith Eternal). The Sith Eternal took the lion's share of the sith into hidden nebulas and rebuilt their strength under the guidance of the Worm Emperor - however when the Jedi attacked their hidden base, the Worm was killed during a ritual by Darth Empyrean and is stuck in him unable to control him.
Now without the Worm, there is a Triumvirate formed between Darth Ophidia, Darth Carnifex, and Darth Empyrean. They are working together (with a hefty dose of fighting eachother) to spread out and become an Empire again. Theres a number of minor lords, but we are generally feudal and mostly decentralized atm - waiting for someone to really make the big dog plays to take over again.
Any specific questions, I can go into more details about anything!