There should be no battles and no Warfronts.
At best there should be skirmishes and stealth operations.
For that Turalyon is in a prime position to stir some tensions in Lordaeron, if Calia has a problem with Alliance forces reoccupying some former holdings of Lordaeron. There can also be stealth missions and skirmishes in Quel'Thalas, as the Ren'dorei attempt to undermine Theron's dictatorship.
But No large battles, because that's already Faction War territory and frankly I think everyone is tired of it, Blizzard included.