When creating or changing the target a redirect, display in the page history, new pages feed, etc. the (new) target of the redirect. The automatic edit summary does this but when someone adds an edit summary (e.g. describing the motivation or explanation for the redirect) there is no record of the target without looking at or previewing the specific revision.
Appending it to the edit summary, making it part of the "new redirect" or "redirect target changed" tags or have a new tag displayed along side them are ideas for how it would be displayed.
The primary use cases would be:
- For new page patrollers, seeing at a glance both the redirect and its target without needing to load or preview a revision and without sacrificing the edit summary, which can contain explanations
- For those researching the history of a page, making it easy to see in the history what the target was originally and what it was changed to without needing to look at/preview individual revisions.
See also the Village Pump discussion at the English Wikipedia. The discussion is not finished yet but getting a feeling from developers for how practical this would be and which (if any) of the ideas above would be the most likely method of implementation if it is at all practical would be very useful in moving the discussion forward, e.g. would this be a 20 minute task suitable for a newcomer, multiple months work for multiple highly experienced MediaWiki coders or somewhere in between?