I'm going to be blunt about this.
Super Smash Bros should have died. It has a boring world with uninteresting characters and the series focuses on the most boring aspects of it's setting. "Oh no, Mario has to fight with Kirby". Like wow, really interesting storytelling. If I wanted to play a fun platform fighter, I'd play Play Station All-Stars Battle Royale because that game allows you to play as cyborgs, demon hunters, a raccoon, a god, a superhero named Cole MacGrath and a girl named Kat who has a cat that allow you to control gravity.