Addressing Collider, Deadpool 2 writers Rhett Reese and Paul Wernick affirmed that both Colossus and Negasonic will appear in the continuation.
PAUL WERNICK: I can’t say how much they are…
RHETT REESE: I think we can say. Yeah, they’ll be in the sequel.
WERNICK: Yeah, they’ll make at least an appearance.
Deadpool 2 has keep running into some real obstacles, including the loss of director Tim Miller and its composer Junkie XL , and now John Wick director David Leitch is leader to direct the continuation.
Deadpool 2 will hits theaters on January 12th, 2018.