As perhaps a simpler case of copy and paste from 'external sources', pasting richtext that copied from the same wiki should work seamlessly.
In many cases, the 'html' already has the metadata needed. e.g. the image, or text-with-wikilinks, even the categories, should be paste-able
https://en.wikipedia.org/wiki/Pelham_Parkway
With a tiny bit of additional html attributes, the navbox templates ({{Parkways in New York City}} & {{Bronx streets}}) could be copied as they are self-contained units - no parameter were used to invoke them.
Again with a bit of markup, the Infobox pasted into a VE session, but only the shell transclusion could set up - the parameters would need to be entered by the user in the VE.
Version: unspecified
Severity: enhancement
See Also:
https://bugzilla.wikimedia.org/show_bug.cgi?id=51547