Generally reports have been that they are unwilling to book it without an AA coded inter-continental segment. Generally people have said TPAC or TATL, but someone recently posted (within this year) a segment to Chile that was allowed and kept their TPAC and TATL on other codes.

I don't know if your PPro status would make any difference to the intercontinental requirement or not, but I wouldn't hold my breath. Is South America in your plans anyway? If so it could work since only Brazil has non-AA codes available, everything else would be an AA code regardless.