There haven't been any real regional traits proposed, though you could also look through some of the Faerun sourcebooks for some regional traits also, like the Jotunbrud...

Non-bending classes are a real conundrum, as the Benders take the place of spellcasting classes, but are more parallel to Jedi in Star Wars D20, capable fighters who are also mystically enhanced. Monks and fighters are seriously left in the dust, as benders already take the place of monks more or less, and fighters are much more... there are some replacements, as in Lord Tartarus set, and Eighth Seraph's set.