TR_m4_wil_SkeletonWizard is potentially unreviewed. I say this because in its current stage, it cannot be initiated on account of wrongly filtered dialogue. There's an entry in Greeting 0, reading...

Yes! Yes! Finally, someone is willing to talk to me! Please, don't be afraid, traveler. My name is Saylenus Ramaril, and I am not, in fact, dead. I am a sorcerer and I am as alive as you are. What you are witnessing is merely an illusion experiment gone wrong. As for Clivius Corruvian here... he, regrettably, is proper dead. It's not my fault, I swear.

...that should be filtered for "TR_m4_Cr_Saylenus Ramar" but is filtered for "TR_m4_Saylenus Ramaril" instead. At the very least, that needs to be fixed, so the quest can be properly initiated. But, if the very start of the quest is broken, I am afraid the entire thing might not have been reviewed.