I have to admit that I don't fully understand the implications of that
exposé yet, but it might be interesting to think about "Complete
Editions".
I know that it is a current discussion to enhance the idea of editions
by digital media.
For example the Reger Edition has started to provide DVDs along with
the printed score in which one can directly compare several sources
and states of development of the work.
And I think this is a general tendency.
From my - biased - POV LilyPond would be a good choice for Complete
Editions in order to develop a) collaborative work-flows and b)
technical means of providing different target formats
If that's a possible way to go the most interesting institution would
be the Akademie der Wissenschaften in Mainz, which is the head
organisation for a _lot_ of Complete Editions.
I have some good contacts in that direction and can ask a few people
about their opinion.
End of April I will give a presentation in my university (which at
least on of these contacts will attend) about LilyPond, LaTeX and Git
(i.e. text-based work-flows) and could (although I didn't intend to
open the already wide topic even more) include the perspective of
scholarly editions and discuss it there (to get some qualified
feedback from people who are not already 'in the LilyPond track').
Best
Urs