In the 1970s, Marvel created the Defenders, a sort of "non-team" of heroes assembled by Dr. Strange and featuring the Hulk, Namor, Silver Surfer along with more obscure heroes such as Nighthawk, Hellcat, Valkyrie and Moondragon.
Eventually the original 'big four' left the title and were replaced by former and future X-men Angel, Iceman and Beast. This lasted for a while until the title was cancelled.
There have been reunions and some revivals over the years, but nothing really that lasted too long.
http://www.comicbookresources.com/?page=article&id=33314
Now, with the hints in these posters, it looks like we might see a new Defenders team of some kind, with Doctor Strange, Iron Fist, Hulk and his estranged wife Red-She Hulk, and Silver Surfer.....although this is all speculation so far.
Eventually the original 'big four' left the title and were replaced by former and future X-men Angel, Iceman and Beast. This lasted for a while until the title was cancelled.
There have been reunions and some revivals over the years, but nothing really that lasted too long.
http://www.comicbookresources.com/?page=article&id=33314
Now, with the hints in these posters, it looks like we might see a new Defenders team of some kind, with Doctor Strange, Iron Fist, Hulk and his estranged wife Red-She Hulk, and Silver Surfer.....although this is all speculation so far.