Do you think they will add Forge in the main roster/intro if he and Bishop went to the other mutants to find the time displaced X-Men? For the first season, we saw 13 mutants with their names being displayed. And all of them are coming back for the second season.
I wish Magneto and Morph got the ax, because how are they going to make room for the other X-Men. The main roster is already too big, Apocalypse would get a lot of focus and I cannot see them including Iceman, Colossus, Psylocke, Angel and Emma with any of them/and the other returning mutants doing a lot, in the 10 episode second season.
So I think I'd be just content if one from Forge, Iceman, Colossus, Psylocke, Angel, Shadowcat and Emma are added into the main roster/intro.
Also, I don't know how they came up with Sunspot's inclusion in this show. He's a "New Mutants" staple and I don't recall him and Jubilee interacting in the comics. So I was really indifferent with him throughout the show. He could easily join the main roster like Morph in the first season, and I wouldn't be thrilled compare to Nightcrawler finally joining the main roster.