We'll be doing another test to investigate if and how many users click into the language link to see if the article is also written in a language (other than English) and then to see if the user wants to click through to that new article to read.
Write up is here: https://www.mediawiki.org/wiki/Cross-wiki_Search_Result_Improvements/explore_similar#Explore_similar_-_for_languages_in_search_results
It'll look something like this: