10 Movie And TV Spoilers We Didn't Know Last Week (27th Aug)
2. Black Panther And Captain Marvel Are In Active Development, Says Kevin Feige

They're both characters that we like, that development work is continuing to be done on. And certainly, it's a question I get asked more than anything else. More than 'Iron Man 4,' more than 'Avengers 3,' and that's sort of the first time that's really happened to us, so I think that makes a difference. I think that's something that we have to pay attention to. I've always said we have our plan, and it's served us very well. There hasn't been anything that's made us deviate or change from that based on an opinion, because opinions online change. They alter and they're based on limited information they have to what's going on behind the scenes. But in this particular case, I think it is a groundswell, and I think it means something substantial.
Feige sounds a little cagey in the interview, but the change of tone from his usual 'we'll do it when we do it' attitude suggests that there is some real effort being put into the projects. Fingers crossed, eh?