Hi! Would appreciate if you could shime in on Add 'wikipedia' and 'wikidata' fields to lake.json by matkoniecz · Pull Request #1991 · openstreetmap/id-tagging-schema · GitHub and my now closed one from the maintainers; Add 'wikidata' field to lake.json by HuggeK · Pull Request #1865 · openstreetmap/id-tagging-schema · GitHub and put what you guys think.
see also already posted Is it a good idea to show prominent empty Wikipedia and Wikidata fields in iD?