I added Korrigan and Andrea separately because I am not sure that hey
are on the lists. I added MediaWiki list to ping interested
developers. Please, give your comments, suggestions etc. at wiki
research list (wiki-research-l(a)lists.wikimedia.org).
It looks like improving Cite extension is the simplest task from the
list . French Wikipedia already has a working improvement  and
Andrea made another one (including easy to use interface) . There
are, also, two bug reports: one for simple improving Cite  and one
for adding BibTex compatibility . The first MW bug report is very
live, while the last one seems to be dead.
So, my question is: Is it possible to join efforts for making one good
extension which is needed to all WM projects?
 - http://meta.wikimedia.org/wiki/Wikidata
 - http://www.scionline.org/index.php/Main_Page
 - http://bugzilla.wikimedia.org/show_bug.cgi?id=6271
 - http://bugzilla.wikimedia.org/show_bug.cgi?id=8167