Meh, I don't foresee an end to war. Nor a gangbang.
As for AA being Thal's "pet chihuahua", first, AA has proven to be much more than a chihuahua and has played a major part in this war. Only last week AA defeated Melhed and Rio both, alone. And as for being a pet, relations are complicated, simplify them at your own peril.
That's not to say that AA and Thal aren't tight but it's a relationship of mutual respect based on a common heritage and a shared culture. Hopefully one day it'll result in an interesting war between brothers but it won't just happen out of the blue.