For wiki pages talking about icons* it would be great if SVG images could be embedded from external sites (if possible restriction to KDE domains might make sense). Think about pages like
https://community.kde.org/Calligra/Icons/3.0
https://community.kde.org/KDE_Visual_Design_Group/LibreOffice_Breeze
Embedding PNG images from external sites works nicely, by just noting the plain url. So the same/similar would be good to have for SVG images as well, especially with all Breeze icons being in SVG.
estan hinted "Regarding your PS: Seems a patch for MediaWiki to allow this is under review, but still not merged :/ https://gerrit.wikimedia.org/r/#/c/184337/ . It will be opt-in because of security implications (e.g. JS in SVGs), so KDE sysadmins will have activate it with $wgAllowExternalSVG.
Until then, what they could do is allow the img tag with $wgAllowImageTag , which I think would allow external SVGs (with a little lengthier syntax )." in https://frinring.wordpress.com/2015/11/21/your-input-please-naming-of-action-icons-tables-vectorpaths-animation-text/#comment-4779
Would it be possible to enable $wgAllowImageTag, or do you see a bigger security risk because of which we better don't do that?