But games like Quake, WoW and such have 3D models that require animations and other physics attached to them. The virtual figures we would have in the DDI are going to be static "statues" just like real minis (unless I missed something and the figs will be animated). As long as you have a base model of "humanoid" in whatever 3D rendering program they use, all you need to do is move the joints around and then apply new texture and you already can account for all the humans, elves, half-orcs, halflings, most undead, some constructs and 30% of the most minis.
The only ones that would require a lot of work are the strange ones like beholders and such.