CC, bear in mind that with exception of type 55/665, sx, polaroid tungsten, and polaroid sheets larger than 4x5, the fuji instant materials have pretty much filled the instant film void. The fujis are very, very good, and still being made freshly, with excellent QC (beter than polaroid's IMHO)... at viable cost.
Regarding the thought of polaroid simply giving the equipment and technical details over to someone else, well, the expense is moving the big equipment and all that. Their process was very much scaled up and, ironically, it's less expensive to scale up an industrial process than to dial it back into a niche. It would be hideously expensive for somebody to try to move the equipment, set up new contracts for the raw materials, get the polaroid line back up and running in reduced capacity, and then move the product reputably into a declining market.