Disclosure and transparency would be useful but that's really only 2 of the seven sustainability factors.
I agree that moving to a widely used standard lossless image file format would be desirable, but I think that the problems of multiple formats are being greatly exaggerated, in particular as an issue for archival longevity. It seems to me more an issue of convenience rather than any real risk of losing access to old images. My reason for proposing another goal, publication of specs of all raw formats, is that I see this as far more attainable that persuading camera makers to go to the additional effort and expense of rewriting all their existing in-camera firmware and other software to support a different raw format like DNG. The difference between successive versions of a camera maker's own raw format are probably far smaller, making it cheaper and quicker for a camera maker to make minor tweaks to their existing, formats, firmware and software as necessary to support each new sensor. (How much do the new formats for new cameras of the same brand vary? Is it mostly for different CFAs and lens-related information, to guide demosaicing, "de-barelling" and such?)
As to those seven sustainability factors listed by the National Digital Information Infrastructure and Preservation Program
of the Library of Congress at sites like http://www.digitalpreservation.gov/formats/
--- ss far as I can tell, if the more modest goal of publication of the specifications of all raw file formats were achieved, all such archival factors could be handled. The worst case scenario would be an archive acquiring a collection of old image files available only in an obsolete format that is no longer supported by any standard commercial software. But as far as I can tell, all it would take to deal with this is that some organization (such as the Library of Congress or UNESCO) maintain an archive of the specifications of various raw formats and a reference implementation of software for image file format conversion
, supporting that entire archive of formats. I see no major difficulty in adding a dozen or so new file format specifications each year to such a system.
By the way, the archival purpose of not losing access to an old image (rather than retaining maximum ability to manipulate it) could be handled by conversion to TIFF, or maybe even to high quality JPEG. All camera makers support that option, don't they?