Me and my buds were having a chat on Ventrilo, and a topic about boss monsters came up. The concept is that there are one of a kind monsters that you would be considered dimbass just encounter. A sketchy snippet of the convo. (I have bad memory)
"You could have like a T-rex or a dragon. And you'd get badass stuff if you killed them. Like dragon bones, or something. Or dragon scales. Or dragon sperm" (Yes, he actually said Dragon sperm)
Anyways, sinse the map is so sprawling, we could have about 3-5 boss monsters, with a slim chances of direct encounters. It sounds like a pretty cool idea.