TFT: end of factional wars

Q u o t e:
What exists now is essentially a cold war, with the two factions fighting in proxy areas such as Warsong Gulch and Arathi Basin.

With the transition from active warfare has come shifting allegiances, such as the Blood Elves joining the Horde after falling out with the Alliance (pretty much all the fault of one Alliance general), and Dalaran electing for neutrality.

This is a pretty good explanation right here (minus the real world references.) It's been an "uneasy peace". Everyone is still a bit froggy and there are some downright open hostilities still very prevalent in Azeroth. There are of course some pockets of 'let's work together to get rid of these very bad/evil/destructive folks here first" but that doesn't mean that everyone has become best friends forever.

Things could easily cool down more or heat up more with everyone refocusing on the old wounds that Arthas has left bare.

Q u o t e:
Froggy? you mean foggy?

No. I meant froggy. aka. Ready to jump into a fight.