Next summer, Fox's Deadpool 2 will grow by two mutants with the additions of Josh Brolin as the time-traveling Cable and Zazie Beetz as the luck-altering Domino. If a new rumor is true, a trio of other new mutant characters are also set to cameo alongside the Merc with a Mouth in the upcoming sequel.

ComicBook.com reports Sunspot, Feral and Shatterstar will appear in a post-credits scene in Deadpool 2 in order to set up the X-Force feature film. In the comics, all three were former New Mutants who graduated to Cable's more militaristic X-Force unit. With constant rumors about Fox's X-Force plans, Deadpool 2 would be an obvious tool to achieve this goal, especially with Deadpool and Cable serving on the team at various points in Marvel Comics.

CBR has reached out to Fox to confirm.

RELATED: Fox Sets Dates For New Mutants, Deadpool 2 and X-Men Sequel

Fox recently announced that the Deadpool sequel is being shifted from the February window of its hit 2016 predecessor to July 2018, along with an April 13, 2018 date for director Josh Boone’s New Mutants and November 2, 2018 for what was formerly referred to alternately as X-Men: Supernova, which will apparently be titled X-Men: Dark Phoenix.

Arriving in theaters on June 1, 2018, Deadpool 2 will see the return of Ryan Reynolds, T.J. Miller, Brianna Hildebrand, Karan Soni and Leslie Uggams, along with newcomers Zazie Beetz and Josh Brolin. The film is directed by John Wick’s David Leitch.