That may well be exactly what those who've made offers want to do.
Just cause they've had a number of offers probably doesn't mean there are a number of organisations offering to run the airport as a full pax airport.
Afaik they've had a number of offers over the last few years but they didn't accept them - I'm guessing in many cases cause they didn't preserve the pax ops (or maybe any aviation ops at all).
If they're going to to sell then maybe someone has offered to keep the pax side of things going, but how they'll be profitable I don't know.
Given the battle that went on re the GLA, EDI and the BAA breakup I'm not sure how AGS or GIP could buy the airport with no competition issue being raised? If BAA weren't allowed to own 2 central belt airports in GLA and EDI, why would either of those be allowed to own PIK plus another?