MakeMusic's recent announcement to extend the Finale activation server life is good news, as is the free Finale 27 upgrades for all purchased Dorico crossgrades.  It should help with file conversion from Finale to a newer, and still supported, notation software.

Unfortunately, there is still the great potential for a vast catalog of music to simply vanish.  MakeMusic's solutions still don't address the repertoire of composers who will not be able to convert their work before Finale becomes unusable through computer and operating system updates.  As an example: what a treasure it is to find works of a beloved composer sitting in a virtual "drawer" (hard drive, CD/DVD, etc) years after their death.  Also, what about drafts of works that show the score-in-progress?  These are important documents that warrant preservation and are a gift to future musicologists.

This petition to open-source Finale isn't about continuing the use of the software as a composition tool.  Even if, by miracle, another company or group of dedicated programmers decide to continue Finale as a composition and engraving tool, the music community has lost faith in the software.  MakeMusic is right: Finale is dead.  The goal now is to maintain Finale as a preservation tool so we don't lose a body of existing and undiscovered repertoire. 

No artist should ever have to worry that their creative output is at the mercy of a business's financial decision.  And no community should ever have to grieve the loss of so much art.