It is hard to argue about any of those 9. I was going to write off OotScribble, we have no reason to supose that Serini and Girard are dead, and what i have heard about SoD clearly suggests that we have not seen the last of Lirian and Dorukan.
We therefore have a clear 9, but the 'roaches stated that we are not aware of all those that they refer to. Curious.
While Tyrinar was unknown to Redcloak, the roaches have a long history of 4th wall breaking - that message was meant for us, I'm sure of it. We still do not know what he is doing. He may not prove to be a 'side', when we find out more about him.
I suppose you could rule out the Snarl itself as a 'Side' - But he must have his motives and aims, quite separate from those that wish to use him for their purposes!