An editor suggests (in the second point of https://www.mediawiki.org/wiki/Topic:Tb42ves6zs2v7nda)
Adding an optional feature for editors, so that they can turn on partial rendering of the maintenance tags at the top of the article:
By default, hovercards do not show tags that are on articles. While I understand the reasoning for this, it would be useful if the hovercard could indicate if a deletion tag is on the article. Others may have a desire to see other tags that might be on the article. One way to accommodate the various needs of different users would be to have an opt-in to show tags. It wouldn't be necessary to fully expand the tag -- instead just show whatever appears within the curly braces, up to the first pipe -- and perhaps highlight it with some color. This would only apply to tags at the top of the article, within the text that the hovercard normally grabs.