They've worked a fair bit at it already and if they intend to keep maintaining it indefinitely without possibility for further sales it could be nice to actuall

They've worked a fair bit at it already and if they intend to keep maintaining it indefinitely without possibility for further sales it could be nice to actually get money for it at this point. Also, I'm not sure what they might be obligated to pass to the copyright holder per copy? Maybe it's not a proportion of the sales price in this case?