There's been a lot of discussion on Wikidata about bidirectional/reciprocal properties (in the adminstrative unit/subdivides into, parent/child, succeeds/precedes, overlies/underlies etc.)
Some kind of support for displaying the reversed version in infoboxes would likely be appreciated, but there are other possible areas too.
The first step would just be reversing for display, but it would be even better if you could reverse while editing (i.e. the real property is 'succeeds', but when you add 'precedes', it's automatically converted internally). I don't know if the latter is worth the complexity.
Version: master
Severity: enhancement