During an investors call this week, Disney announced that they've signed a three-year deal with Joss Whedon that will see him write and direct The Avengers 2 and help oversee Phase Two of the Marvel cinematic universe.
As part of that deal, Whedon will also be developing a live-action television series for ABC that will fit within the shared universe the films do. What that is we don't yet know, but we can safely say it's something he wanted as part of the agreement.
Let's examine some of the commonly suggested and rumored properties that Marvel Studios can potentially develop for television on ABC with the help of Whedon. Items listed must qualify under a few conditions, namely that Marvel Studios actually owns the rights to the character(s) and that said property fits within the Marvel cinematic universe.