With regard to this:

On Sun, 4 Oct 2020 at 16:42, John MacFarlane <jgm-TVLZxgkOlNX2fBVCVOL8/A@public.gmane.org> wrote:

I'm getting close to a releasable version of the new citeproc library.  [...]

It should work the same as before, only instead of doing '--filter pandoc-citeproc' you'll use '--citeproc'. You won't need pandoc-citeproc at all with the new pandoc.

I have a lua filter that runs _after_ pandoc-citeproc (it does some hyperlink processing). Will this be possible with the new library?