[Soundwave-]

This can only be a good thing, in basically every aspect, for both FFR and in general.

Flash will not die. It will have a fixed runtime specification, which means dev tools and third-party projectors will update and remain up-to-date... Hopefully.

If not, 3rd party tools can already run, edit, and even link to executable formats sufficiently for FFR's purposes.

That being said, with 2 years warning, the port should just happen. It's long awaited, all executable web formats other than javascript are dying as they should, and in the scheme of FFR's lifetime, it wouldn't even be that big of an undertaking.