One of the goals for the search team is to provide an updated UI to the search results page. This will require A/B tests to be run.
After a conversation with the community, we have decided to run tests on Persian, Catalan, Italian and Polish Wikipedias; testing will begin in mid to late January 2017.
In March we decided to run additional tests on 4 additional communities. These four communities are the Arabic, French, German, and Russian Wikipedias.
In my role I'll help to address community feedback and help the team communicate out changes as the final UI develops.