Blizzard announced a few days ago sweeping changes to AV. Read the whole post.

I like these changes a lot. They fit into my play style, and they match what I envision AV to be.

The main difference is that you do not HAVE to kill the other factions leader (Drek or Vann), you just have to remove all reinforcements. Killing the leader does this automatically, but there are other ways to do it. From the post:

" Reinforcements can be lost in significant amounts if a tower is destroyed or if Captain Galvangar or Balinda Stonehearth is killed. For each team member death, an additional reinforcement will be lost."

That means holding and destroying towers is key, and keeping teammates alive is key as well. Towers are even more important, for every tower you destroy, the other faction loses 1 WM. They WM are also linked, so no more horde cheating:

"Pulling one is a guarantee the other will come as well."

The real question, of course is, will the honer be as good? ^^