IMHO: There is no excuse for a business plan doesn't account maintaining the transmitter plant. If the long term financial "sence" can't afford a piece of equipment that should last at least a decade and costs less than the expense of a full time fast food worker for one year then then do the financially responsible thing sell out: or cut your losses and turn in the licence.
Some of these translators were "virtually free*" to AM broadcasters when you take into account what a short spaced Class A FM would cost. A lot of these signals would never be a traditional FM allocation due to spacing rules but were allowed because you had an AM license. I wouldn't speculate on the FCC allowing these translators becoming some kind of stand alone Class A1
* After engineering, all one really needed was the equipment. A whole lot less expense, time and hassle than getting a Class A Commercial FM license assuming and allocation became available in your area