Legion pre-patch and Demon Hunters

[myrroddin]

I presume, since I get a message that DHs require Legion and a level 70 character (I have at least 3 that are 80+) that we can't create Demon Hunters today, July 19?

Just wondering, as I thought if you pre-purchased Legion (I did) we'd get to create the new class now. Anyone know when, assuming Blizzard didn't change their minds and we have to wait until August 30?