Given bungie has given Mithrax a Dr. Jekyll and Mr. Hyde vibe, I have a feeling we will see Act 3 play out much like this rather than giving us a meaningful conclusion to the scorn and fikrul just like Maya and the new vex last episode. Mithrax will succumb to the curse and go on a rampage in the last city attacking both Eliksne and Humans alike. Additionally he'll probably summon dread forces which will keep us (the guardian) from pursuing. Meanwhile, Eramis will escape her cell and protect both Humans and Eliksne in pursuit of Mithrax. When we finally catch up to Mithrax, we will fine Eido trying to talk Mithrax out of his rage, but will nearly be killed and be saved by Eramis. Mithrax will snap out of his curse and ask Eramis to kill him, which she will agree to. Eramis will then be pardoned and given the title Kell of house light, till Eido is ready to lead. This will then close out Eramis' redemption arc while leaving room for Eido to eventually become Kell of Kells and Mithrax to possibly return as the 1st fallen guardian.