They even did this big quest thing to bring back alot of the bosses in there.OH OH I KNOW! Maybe they plan to do a 85 version of it? maybe as one of those side raids. like ZA was not a progression but it was there to do and have fun or maybe like ony.
I actually saved the heart of hakkar ( the quest starter for the neck piece ) just because i knew this was going to happen, Zul'gurub was after all the first raid i did back when i played a rogue, Holds a big value for me. :)but its still sad that they removed it!