There are some NSAv options out there that don't involve only single engine turbo prop time. We have been told thatwe can expect an NSAv, I'm sure if you let your preferences for multi time be known it would garner some consideration. That being said I would think that time flying a PC-12 / U-28 for AFSOC would be more valuable to the airlines than flying strictly a PC-12 in the corporate world. Then again, I don't know I'm not even worrying about that aspect yet.
Furthermore if you are really worrying about the airlines right now you might find it a challenge in AFSOC. If you are asking just to know, maybe a more appropriate forum would be calling/emailing the airlines. Otherwise you kind of come of sounding like a doofus.