Some great looking stuff here- I find a Neutral Inquisitor to be a bit of an odd inclusion, as the Inquisition seems like it should be under AM (given that they are already adding an Inquisitor warlord), but his ability seems like it'll be pretty handy for several decks, although its 4 cost might make it tough to afford in a rush deck.
The main event of the post is obviously Baharroth. One thing I like about him is the Phoenix Lord trait. I love traits in games. Anything that works on traits, or supports trait themes is something I can get behind. My hope, therefore, is that the Phoenix Lord trait actually MEANS something someday.
Everything about his signature squad seems great as well. Cry to the Wind gives some additional flexibility to the deck, and will help make Death From Above more useful (might be time to try out that Mobile heavy deck). The Signature Unit has two command, which is amazing! And at three cost, with an ability to protect itself (Mobile...), it's a pretty good value.
I have to say, I'm quite pleased by what I see. It's a new play style not only for Eldar, but for the game in general (or at least it's a much stronger version of the Tau/Eldar mobile deck that I've seen once or twice).