If you already have hundreds of mini's you are probably not the main target of these minis. They are the first minis for the new edition, which means they are going to sell a bunch of generic minis that a completely new gamer would want. So expect lots of orcs goblins and common PC minis.
Heh, I may be an exception to this, because I have something like 500+ minis, and yet I always want more; especially generic minis. Even though my collection is large, I still don't have spiders or scorpions of all sizes, or enough different kinds of orcs to represent a larger war party. I hate using "stand-ins" for, say, centipedes, especially wrong "shaped" and/or sized minis (e.g. a large demon for a medium centipede).
I probably have enough humans and demihumans, but more the merrier; especially to use as PC minis (I love if the minis *actually* resemble PCs).
I want generic fantasy minis, not world-specific or representing a certain genre (e.g. Dark Sun minis or pirate-themed sets). I'm fine with FR or Greyhawk NPCs, though, because they are mostly generic fantasy characters.