The Defenders
From 1972 to 1986, Hulk and Doctor Strange remained, but the rest of the group was variously made up of Hellcat, Beast, the Gargoyle, Valkyrie, Night Hawk and Luke Cage. Since its first appearance we have seen The New Defenders, The Secret Defenders, The Last Defenders, The Fearless Defenders and The Ultimate Defenders – and Doctor Strange and Hulk have been involved in most of those incarnations.
With the announcement of their joint miniseries venture in 2013, Marvel and Netflix confirmed that their four 13-episode superhero shows will culminate in a Defenders series, timed to coincide with the end of phase three of the Marvel Cinematic Universe. It will presumably see the characters of Daredevil, Jessica Jones, Luke Cage and Iron Fist working together for the greater good.
All we need now is an Iron Fist casting announcement.