I'm going to be dotting around between stories for a while; right now I have four different ones open and I'm writing a paragraph or two of one, switching to another and writing some of that story, and then to another.

Lathander and Shar will indeed put aside their hostilities; the Amaunator personality of Lathander is starting to re-emerge, triggered by Buffy and Dawn meeting the avatar of Amaunator, and Amaunator isn't as implacably hostile to Shar. Also Lathander remembers making some pretty bad mistakes himself and is willing to accept Shar's declaration that she's making a new start.

Chauntea, however, isn't. This will create a rift between her and her former close allies Lathander and Mielikki, especially Mielikki, and Chauntea will align herself with Selûne and Sune.

The really big surprise will be what happens with Mystra.