So, wild theory:

Aymeric may be attacked or screwed over somehow by Emmellian. Most of the MSQ's in the patch notes take place in Western Coerthas. The trailer shows Aymeric speaking in what seems to be Western Coerthas. Thancred seems very angry and punches Emmellian. Honorait - Emmellian's errand boy - is briefly seen in the trailer on the floor nearby either dead or injured as this happens.