This isn't quite what I was expecting to find in yesterday's Queue comments, but hey, our community is full of surprises. *Sniffs loudly and annoyingly*
I had a thought as I was leveling through Zul'Drak on my monk last night. I noticed that the whole Gun'drak area at the top of the map where the exterior looks a little big to be just for a single instance. It actually seemed to me almost like the original plan was for two smaller instances (Side buildings) and a raid at the top (large building) Was this originally a plan? Did it get scrapped for something else? I didn't start following blue posts and the like till mid-Ulduar so I don't know about what early Wrath plans could have been.
Wrath has several places where dungeon content was originally planned and then scrapped. Utgarde was supposed to have a raid, and Gundrak as well. Heck, there are even item models that were named thinking they'd be part of those raids. Me, I just wanted to see what the heck that giant snake in Gundrak was all about. Also, where the heck was Frost King Malakk during Wrath!