Assuming you're talking about an event comic and not just a crossover, I think it's possible. I think it's most likely if we have a Black Panther writer who becomes so successful they start writing the more main books like Avengers. Coates has obviously started doing Captain America, but I doubt it'll go much further than that. I don't know how Marvel feels about giving Jason Aaron another event, but I suppose the opposite direction is possible as well. Aaron's got Black Panther ties and has been building up his Agents of Wakanda stuff. But, in order for it to happen, it'll almost certainly have to involve a writer writing multiple books, imo.