It seems unlikely that the character will actually appear in The New Mutants, but it seems that the link between Colossus and Magik will at least be addressed, even if it is only in passing.
A brand new synopsis for The New Mutants has made its way online.
Which also directly ties The New Mutants into the world of Deadpool.
At present, Disney intends to release The New Mutants in theaters on August 28.