I included this wish as part of my September 2025 post to T404391, and fear it has been lost.
(slightly edited for clarity here)
When I get an e-mail informing me of an edit to an article, the e-mail needs to include the watchlist labels that I have previously added for that article.
The text in the e-mail surrounding the labels should clearly identify them as labels so that I can create a rule in my e-mail system to detect specific labels and sort the e-mails accordingly.