In authorities search page, sort orders are only alphabetical and none. C4::AuthoritiesMarc::SearchAuthorities provides a sort by authority id (auth_header.authid). So we could add search order by id in authorities search page, it can be useful to find more recent or oldest authorities.
Sorting by id seems to be what the "none" choice for sorting does. It would be practical to let the user choose this explicitly, and choose between older to newer or newer to older. It would also be interesting to have a "relevance" sorting option available, similar to what we have in bibliographic search. Searching for "history" would then bring up the "History" record higher than "European history".