Just to say: According to Exploring Azeroth: The Eastern Kingdoms, Stromgarde is fully rebuild and Danath is in charge of the place.
The Alliance version of Arathi is currently the situation depicted in the book so technically, Stromgarde as it is after the war exist in game.
Realisticly, the only way to have peace with the Forsakens is to right the wrongs.
I mean by that to have Gilneas and the Silverpines forest officialy retaken by the gilneans and the forsakens to abandon what’s left of their settlements in these areas.