I would like to request Concord Regional, NC KJQF. It is home to NASCAR race teams and is a very busy small airport all week. Would be an easy freeware scenery for the ORBX team.
Also KDKX Knoxville Downtown Island would be super cool, it's on a small island on a river near the great smoky mountains, very scenic.
As a last suggestion, KCRG Jacksonville Craig to give Florida a little attention. Very busy small GA airport.