I think I’ve noticed that not all villains from every Precure gets killed off.
I mean here are the total number of villains that survived:
Max Heart: 1 (yeah as if Hikari has a sibling)
Splash Star: 2 (Kiryuu sisters)
Precure 5/GoGo: 2 (I dunno how Kawarino survived <_<)
Fresh! Precure: 3
Heartcatch: 3 (went back into being normal citizens)
Suite: ALL since there’s no deaths jooooooo!
Smile: 3 (see the Heartcatch situation)
Doki Doki: 4 (Regina stayed with the Precures whereas the Jikochu Trio exited at the last episode)
Happiness Charge: ???
The latest one we’ll see who survives.