Thread:HackerEX/@comment-43281069-20200106022111/@comment-27464072-20200124171816

I'd imagine that the crossover between Style Savy and Manga Heroes would also include Miraculous Ladybug (as it would be the third Precure movie to take place in Paris, but the first All-Stars movie to take place there)

Meanwhile, the main movie would be a crossover between Happiness Charge and Style Savy itself. The OVA being their take on the culture festival arc from Heartcatch and Smile.

As for Ancient, more than likely it would be the Style Savy jumping into the past while the main movie could dwell into an alternate timeline where Cure Hope was the one to sacrifice herself and Cure Joy became the Queen of Light instead. The OVA would be a prologe for the next season/Futari Wa remake