User blog comment:Joseph Barker/Pretty Cure Dream Stars Tie-in/@comment-25451319-20161106011450

It's a nice thought, but it would probably be a little too troublesome to pull off properly.

Besides, kids these days probably only recognize Cures Black and White because they kept appearing in the All Stars films. So it's probably a good plan to have Dream Stars focus on the Cures that kids from the current generation will be familiar with...not to mention, it will allow the Cures to all get speaking roles in the movie.