I thought he might too, but after this lineup was first teased, i had a look at Jean's solo book, and I think the whole Phoenix angle being presented there is just too much to ignore. Also, she teams up with Thor (Odinson) in one issue, so I dunno, that seems really random to me unless it's sort of a foreshadowing thing. I think Aaron is just going to settle for having Quentin be a part of having the Phoenix be released again, in Thor. But, he is a possibility, won't deny that, could definitely happen.
Decided to dig up the panel of the medieval Avengers tease from Thor, for people not reading that book, figured this was a good place to share it:
The captions there are most likely Loki's internal monologue kinda thing, (you can see his horn on the left there, he's looking at the carving) which is part of what makes me pretty certain he is going to be involved, beyond the whole Dr Strange situation. The big guy is the Viking Hulk, which was the subject of the issue this came from (it was a sort of flashback issue, mostly) he's magical in nature, rather than gamma, but same general idea. But yeah, you can see it's not all the exact same legacies there.... Still have Thor, a Ghost Rider and Black Panther, but also the Viking Hulk and an Atlantean, though I suppose the Atlantean could also be the Sorcerer Supreme or Phoenix host.