Dave Kosak's tweet :
""Jaina's response to Theramore will be explored in Christie Golden's upcoming novel, and later in the Mists patch cycle. Neutral? Pah! ""
Dalaran will no longer be a neutral city given its leader won't be neutral either. Jaina will remain an Alliance character, she will remain committed to the war, and Dalaran will be Theramore's replacement for sure.