The following things have changed:
The bear trash now debuff 25% more damage taken rather then 100%? (this was the old value I think)
The wall between Hexlord and Halazzi is now filled in and you can't skip the 4 pack patrol coming from dragonhawk. Actually you might be able to if you wait for them to move all the way towards the eagle but we just pulled it instead.
The tamers now MC random targets rather then the closest person.
That's all I noticed. The bear trash is far more inline with the rest of the instance now but the HP on everything is the same.
If you really want to dig through the log to compare to another it's here:
Wow Web Stats but I'm 95% sure everything is the same as before.