It depends on whether we're stuck with the Baldurian tag or not. The only things that are set in stone is that the character is a male human or half-elf and will be either fighter (champion), rogue, bard, ranger or paladin if we're stuck with the tag.
Im affraid we are ...
Underdark, Plannar, or Baldur's Gate. :-/
I hope they'll reconsider and add a few more, even if they are limited to Amn, Swordcoast, Western Heartlands, etc. or something like "Outlander".
Otherwise the outlander background doesn't make much sense. I'd love to play as a barbarian (berserker) or druid, but if I'm forced to have the Baldurian tag that won't happen.