I found this article on Search Engine Journal
to be an interesting read. Twitter is going to begin providing more context around trending topics on the platform. Apparently, that's a response to the fact that millions of users ask on a regular basis why specific topics are trending. Twitter plans to address that adding a pinned tweet and description next to trending topics:
"Throughout Twitter, we've been working to bring people more context on what's happening with labels on Tweets and accounts as well as curated pages (aka Moments) and related articles on trends. To help with this, we're adding pinned Tweets and descriptions on trends to help explain why something is trending."
The idea behind the update is that the right tweet will not provide instant enlightenment to Twitter users and answer questions about why something is trending before the get asked. Twitter is calling the pinned tweet a 'representative tweet', but not all trends will get one. The system will run by a combination of human curators and an algorithm. Search Engine Journal posted a screenshot of representative tweets in place:
The new system certainly does make it immediately evident which trends are getting the most attention on the platform - which should be a useful tool for anyone marketing via Twitter. Descriptions won't get added as quickly as representative tweets are set to appear - but they're on their way:
"In the coming weeks, you should see brief descriptions added to some trends as well to help add context to the trend. Descriptions will provide straightforward, clearly sourced context around why something is trending. Descriptions are developed by our curation team and follow their guidelines."