Yes it is and yes they will.
Pandaria was a massive shiftover in style, now we'd be going back to 'normal' azeroth.
"But Pandaria was just oriental styled, nothing special"
It's nothing special because the grass was green, the water and sky are blue and that it looked like Earth.
Imo, green water, a spacey sky and red ground doesn't make much difference to me.
Don't get me wrong, I'd love a Burning legion expansion just as much as the South Seas, but you're overflowing with bias.