This patch is going to provide some critter rebalancing in XP. So AL, for the most part will have reduced XP on the tuskers.
Missilie Defense is supposed to be raised across the board, balancing those dastardly archers that always manage to get the Gaerlan Kill.
I really hope they don't mess with the spawns in the dires. I love that stuff. I do imagine they will fix the Boss spawn rate as I have enough Diamond Shields to build a fort and enough Phylacteries to Light Up Orlando <--- bah, remember that Central Floridians? Eddie Money.
They are also adjusting creatures to be more balance based on their levels. meaning that you will no longer be able to throw level seven buffs on a newb and set them free. You will still be able to powerlevel, but you will actually have to be there to imperil and vuln.
That's it off the top of my head.