I feel like my excitement for this is more of a "hmm interesting ok" than "wow this looks epic." I think that might be a healthy indicator because blizzard got that out of me for wod, bfa, and sl and none of them were able to hold up to the announcement hype. Legion would be the exception there.
I feel about it how I felt about mop. Not hype train level but curious and generally positive.
I'd say I'm a 6 or 7. Excited to hopefully play dracthyr at least during the prepatch.