Well, there's nothing really stopping them from just taking many of the "regular" classes. As Blizz put it in the past, anybody can take up a weapon and whack stuff with it. The other way around, things would be a lot more complicated. Not that a human swimming across the battlefield and spewing flames wouldn't be funny.
They could say that you can play other races as Evoker for their "visage forms", but that would prolly need a little change for the character creation screen. At the end of the days, allowing other races for visage forms and other classes for Dracthyr (with their racials being nerfed for these classes since they won't get access to evoker talents) would be the way to go. This is basically the new ripcord we need to beg for haha.
#TEAMGIRAFFE
What time can we expect US realms to be up again? Would be interested in seeing the fated affix play out
#TEAMGIRAFFE
I would imagine that the talent tree for warlock will be the very last one added. The lock community will go insane over it no matter how perfect it looks.
I'm hoping to see the warrior tree today.