If they don't have a named Sith Lord in the last episode, this will be a gigantic failure. At this point, they have skated around the "Sith have been extinct for a millennia". I suppose events haven't been reported to Council. "Darth Teeth" seems to be a lot more powerful than a Knight of Ren. I would certainly say he seems stronger than Darth Maul or at least TPM Darth Maul. I have no problems with him kicking the crap out of the Jedi. You have to remember the Jedi have become quite arrogant by this time. This series ties in well with the High Republic stuff. The Jedi's arrogance has blinded them to threats against the Republic.
I keep wondering if the green Jedi woman is Sith. They could obviously hide in plain sight based on the prequels, but I wonder if they would go as far to plant themselves in the temple. I also keep going back to the "I have no name" line. I was thinking, sure you do, your master gave you a name. However, I wonder if he is just repeating what has been done to him. He has put Mae on a quest of revenge, that she must kill a Jedi without a weapon. We haven't seen a lot of canonical Sith lore, but one of things explored in the post Disney comics, is that a Sith must kill a Jedi and take their saber kyber crystal to bleed it into a red crystal to make their Sith lightsaber. I wonder if Teeth's master has been doing this to him and thus he was passing some of this on to Mae.
What I have wanted in Star Wars for quite some time, is a canonical Sith lineage from Bane to Sidious. This show could fill in part of that. This could be a way of showing the apprentice trying to take over from the master. That Teeth is the acolyte of the apprentice and is recruited to help him kill the master. I like the James Luceno Plaqueis novel, but the one thing that surprised me is that Plaquis was still the master going into the events of TPM. I figured Sidious had been the master for some time by then. It also made it seem like Maul really wasn't a Sith. His birth name was Maul and Sidious just gave him the title of Darth while Plagueis was still alive. Hence why I want a lineage. I think it could be done via novels and comics for the most part.
We will see where this ends up on Tuesday, but it better not be another flashback episode. I'm expecting a Sith Lord in their full power kicking someone's butt.