There is 0.000001% chance that Autodesk is going to activate those seats for anyone other than the owner.
The only chance AFAIK, is for the remaining owners to sell the business (even if the only assets are these software licenses) to someone else, and even then I don't think it would fly.
What's that? They have some value and you feel like this isn't fair?
Well, join the club of many other perpetual seat owners who have been forced to go to rental. Rental is where it's at as far as Autodesk is concerned. They want every license to bring in income, every year. Those old perpetuals no longer do that.
But as @Cad64 said, you are barking up the wrong tree asking us - the only entity that matters is Autodesk. You should ask them.
Good luck and report back your findings so we can all learn. Thanks!