After defeating Emet, it pretty similar to in-game canon. While Azem has more magic power after fusing with Ardbert, he still weaker then he would had been before the sundering.

It's the only time that anything left of F'rosty's will come out. It's how Azem know G'raha name, and why he trusted the Exarch enough not to look into the future. If Azem had to put a name to it, the feeling is the same one he had for Emet-Selch and Hythlodaeus. He vows to protect this feeling.

rejoining. The two talk as old friends, but Emet won't stop his path and Azem won't allow this to continue. Overall they don't want to fight each other but both will do what must be done.

G'raha cause a hurt in Azem chest. This being the reminder of the WoL own soul coming thought.

The Scions all have a hard time with the info but since Azem has the same core, they slowly come around to him. Azem doesn't want to be F'rosty but live to their memory as a way to honor his future self.

Emet knew when they first meet. He try to get Azem on his side but Azem will never support the

Ardbret can tell that he not the WoL he meet on the sources. While Azem is more cryptic then F'rosty(my WoL,his core is the same. Similar to what in game.

The scions don't notices right away. But overtime they started to catch on. By the time of confronting Emet-Selch, Azem come clean to everyone.