I don't think Miyamoto will allow the Mario movies to have plots/stories that are too complex because it would possibly take on a life of its own and then there would undue pressure to incorporate that into the games.
The Mario movies are just there to basically have fun references from the games brought to life on the big screen and not much more. They're James Bond movies for kids in the animated film market and their video game fan parents, the James Bond movies have no character development, some loose variation on the same type of villain (meglomanic madman), all of which is just an excuse to travel to exotic locations with attractive women and then have action set pieces in between.
That's more or less how I look at it. Story and Mario don't really mix, I've watched every episode of the Super Mario Super Show as a kid (lol), thought the story in Super Mario Sunshine was terrible, and even the stories in the Galaxy games are nothing special.
Zelda movie they will probably allow more leeway because it's live action and it invites itself to have more of a story, there's also the built in franchise aspect that each iteration of Zelda is kind of like it's own parallel dimension and each version is just a new take on the legend so that will probably apply to the movie too (ie: the Link/Zelda in Legend of Zelda on the NES is not the "same" Link/Zelda as in Ocarina of Time or Breath of the Wild or Wind Waker or etc. etc.). But Mario is just ... Mario all the time.
Last edited by Soundwave - 23 hours ago