You know we're talking about the movies, right?Considering Kitty's age, I'm thinking probably not. She wasn't even born yet in 1983.![]()
Kitty was introduced in the X-Men back in 1980 when she was 13 and a half, so she could still make an appearance in the movie.
But Jubilee was also a student in Kitty's class in X1 and X2 and Angel was only a few years older than Kitty in X3 and yet both seem to be appearing as teenagers in Apocalypse. Although most of Jubilee's X2 scenes were cut, she is clearly the same character (unlike Psylocke in X3 who displayed none of Betsy's trade-marked telepathic abilities on screen). I'm also fairly sure Jubilee gets a name-check.
We don't yet know what monkeying Apocalypse has done with the time-stream. While it's very unlikely that Kitty will appear any time soon because it will boost the number of characters beyond manageable, we can't say for sure how or if she will crop up ahead of schedule.