After playing this for a bit I have to say that I could not finish a single game without it actually crashing. I have only played the Draenei so far, but the one hero who casts Fog usually just freezes and crashes the game. I tried to avoid using her, or at least avoid using the Fog ability and usually the game will just crash at any old point in time. That said I do really like what you have done with making them feel unique and the whole powering system. The exalt ultimate is freaking awesome but I wish it could be used on a Peacekeeper(at least I think it can't). The Elekk riders look great, the Naaru unit is cool, the heroes themselves are pretty good.
A couple downsides from me though is that I don't really like this map. Allied AI constantly stealing my creep exp, have to cut down trees to get to easy expansion, too big, etc. I wish you could include multiple different maps for instance 1v1, 2v2, 4 player ffa, etc. I don't know how much work this is, maybe I could do it myself if I learn more about the editor.
Now for some big nitpicks from me. Two units that strike me as not fitting for Draenei are Salamander and Draenor Faerie Dragon. Lore-wise they just do not fit that well imo. Not much that can be said about these. I have never seen Draenei near any Faerie Dragons, and Salamanders that breath lightning are usually in like Durotar or The Barrens if I'm not wrong. I know finding models and things can be tough, but I'd recommend some sort of Lightning elemental(representing the shamanistic side of Draenei) to replace the Salamander. The Faerie dragon is a bit hard to replace, but I would use a moth. I think you used a moth for lightforged though. A great unit that wouldn't necessarily fit into what you have currently is the Ravager which Draenei carried with them from Draenor and were accidently let loose on Azuremyst Isle. Last thing I'll complain about is the Rangari model. Blue skin elves just doesn't work for me, and really threw off my feeling of playing Draenei. Someone made a Draenei Rangari model that fits perfectly that you should highly consider using if you ever make anymore updates to this.
Overall though I had blast playing this race, gameplay is great, balance seems good(I say from a noob perspective). Just wish I could finish a game without a crash.