Comment by bloppe

A bankrupt company will try to sell the rights to the software. If nobody buys it, and it's completely written off the balance sheet, then most likely they will just flip to an open source license ahead of schedule.

And if they don't, 4 years isn't that long to wait for something that nobody wanted to buy in a fire sale anyway. Especially if you're free to use it the entire time, just not resell it.