There are no changes to LPTV rules coming. The FCC's TV branch has a far better set of rules for LPTV than does the FM branch which had to deal with Congress getting involved. LPTV's can be commercial and may originate programs or they may act as translators, The FCC does not differentiate between them. LPTVs, except for class A, receive no protection from interference.
So, if your question is can they be sold for a profit, the answer is absolutely yes. Can you sell an application that's designated for auction? Probably not because of the anti-collusion rules. If the buyer is not one of the other auction applicants and intends to go to the auction, the FCC may allow it. Contact the FCC or an FCC attorney for a written opinion before proceeding.