Word is that marvel approached Joss Whedon again to direct something but I'm completely spacing it right now and cant find the article on fb so it may just be a rumor that was shut down. Could have been fantastic 4 or something else. Relating to the topic though, if they offer joss Whedon any marvel property to direct I think it should be x men. If I'm not mistaken, xmen was the title he wrote for in the comics. I dont know if his run as writer was praised or not, but he just so happens to be an established director AND has a history with those specific characters. Also his previous work for marvel was a team film, so he already has experience working with a team of actors like the avengers films.