Tomorrow’s the day, really can’t wait to see how crazy level 70s are
I’m having an internal crisis debating on marksmanship hunter or havoc demon hunter
Shoot extremely far with mastery stacked or have insane healing from DH with leech
A mastery stacked DH will also have super fast speeds
Either vulpera hunter or HMT Druid. I haven’t decided which I’ll do first.
Druid bear can probably have 5 million health if you done it right with mastery.
There’s so many things to try
A copy of this mage on a new/low pop US realm.
Probably Paladin.
Depending on how quickly it is to collect the mounts/transmogs/heirlooms, I’ll level up a Shaman and/or Rogue too.
I might do Shadow Priest if I can’t manage to squeeze another Evoker in. I think they are neat.
Highmountain druid, I need the heritage armor and druid will probably be one of the more versatile classes for farming.
Followed by a tauren mage and vulpera shaman, for heritage armor purposes.
I keep going back and forth. lol
Considering Outlaw or Sin rogue. Sub Mastery 1 shots would be crazy too.
Pandaren Monk; probably Mistweaver.
highmountain druid. I’ve had one sitting at lvl 11 for ages, but just haven’t gotten around to leveling her, so going to reroll her for the mix. after that I think I’m going to finally level a vulpera (still deciding on a class) and goblin warlock. IF I have time.
Blood Elf Monk.
Then I might break my “Always play a Black Person” rule to make a Mag’har Shaman. Or just go with a KT Shaman. one of the two.
but Blood Elf Monk first and foremost.
Panda Monk, or a Ne DH. The only 2 classes I lack, and I do not play at the moment.
Recreate my main (Vulp Hunter) so I can easily fly through buffing my cloak with threads. Then, once it’s good and OP, will work on the heritage armor races. 
blood elf v dh