It is important to note that WMF itself is not in any way neutral on
this issue: adding MPEG4 is explicitly listed as a 2014 goal for the
Multimedia team.
That is, it has already been determined that this is *going to happen*.
https://www.mediawiki.org/wiki/Multimedia/2013-14_Goals#Activities
https://www.mediawiki.org/w/index.php?title=File:Multimedia_Quarterly_Revieā¦
- d.