I don't see a reason to not include this extension on the next round of updates. I could see it being useful for Handbook development and for other reasons.

Check our <a href="/wiki/Project:Wiki#Roadmap" title="Project:Wiki">project page roadmap</a> to stay informed. Once it's added you'll see it show up under the <a href="/wiki/Special:Version" title="Special:Version">Special:Version</a> page.