I am hoping for a "ancient draenor campaign" as well. I think this ogron and other of the breaker lineage are out will be useful in that case, its just one thats missing,and that is the mountain looking ones, don't remember their names atm. What Ihave seen is that its enough of orcs, draenei unit and building models. We just need some primal models now, for the botani there is a malfurion botani skin on hive, besides that the treants do fil in a bit, but what would be damn nice would be if someone could make a skin for the Magnataur, just for a draenor map.
I imagine a Altered melee map that could resemble gorgrond. Issue would be the trees. Besides for the Botani I can not imagine them as a playable race really, but more as a creep race that fills up the area. Thou they could be produced by Ancient trees I gess.
Thou Frostfire ridge might be easier to make, since we already got northrend tileset and trees that could fit, aswell we got wolves and mag'har orc skins, the next thing could be flags for the Frostwolf clan and their neightboure clan, the Thunderlord clan. Also having one of them mounting a gronn. Or a Gronn as a spawnable unit for a Hero/Villain.
I think the custom model for the orc grunt that I know can be wraped around with the mag'har grunt skin can be of use.
The frostwolf Grunt for the Frostwolf clan ofcourse, and the generic grunt for the Thunderlord clan. Next could be a orc spearthrower. But also what would be nice if I could find a way to edit the inside Textures of the hidden chaos orc model in WE, or any way to make it fit the mag'har orcs. Also the beastmaster (aka Rexxars model) can made a mag'har with the mag'har grunt skin. Just import the mag'har grunt skin and put the beastmaster model file over the grunt one. Still I have also had some issues with the mag'har hero shaman. For some reason he does not affect the orginal one.
Anyways there is some potential for a draenor map, to some degree.