The U.S. Supreme Court has docketed Gary Johnson & Jill Stein v Commission on Presidential Debates. The case is 17-916. If the Commission on Presidential Debates chooses to respond to the Johnson-Stein cert petition, the response is due January 29, 2018.
https://www.supremecourt.gov/search.aspx?filename=/docket/docketfiles/html/public/17-916.html
part of the new SCOTUS for filing e-stuff.