>>111154384CW unmasking is definitely Quesada and Millar
OMD is mostly on Quesada, but JMS also shares his part in it. It was originally going to be Loki and not Mephisto, but Loki was still off the table. JMS wanted the deal to alter the past by causing Peter to get Harry help during the time Harry was abusing drugs. It would prevent Sins Past AND Gwen and Norman's deaths. It was decided that the past wouldn't be drastically altered and Gwen wouldn't come back (I assume Carlie was originally going to be Gwen).