I'm wondering about Qimir, when he says "A jedi like you would call me Sith"
That's not an admission that he's Sith. We know that Jedi tend to be a bit blind, and would probably label any darksider with a Red Lightsabre as a Sith.
I'm also fixated on Qimir saying that he's looking for an Acolyte, not an apprentice but an Acolyte.
So here's the insanity
Spoiler!
Theory 1, Qimir is indeed a Sith, he fights really well, he's clearly powerful, he's using Cortosis based armor. He has a lightsabre with a red blade that was created by bleeding. (I still like the EU theory better that the Sith Crystals were synthetic, and imbued with the Force, and the Sith believe they create stronger blades). If I go by this theory, I can't get past that the Sith wouldn't reveal themselves so casually.
Theory 2 - Qimir is not a Sith, he's a Sith wannabe, somehere along the line he was trained by someone who was adept in the Dark Side, but Qimir is trying to create his own version of the Sith brotherhood. So if we go by this, we could have two Sith still out there, that won't be happy with Qimir calling attention to the Sith.