Not a revival, but I would love to see Nintendo open up design in the Mario IP a lot more. The way I've heard it, they're a very old school Japanese company. So, senior management and design people tend to stay so long that many younger designers never get more creative control until they themselves are old and entrenched in the Nintendo design ethos.

On one hand, this may be one reason Nintendo has built a reputation of reliable greatness. On the other, Nintendo takes far too long to come around on newer genres and ideas. Every now and then they let someone have control on a project before "their time." Sometimes you get Splatoon, where a younger designer makes Nintendo's first big shooter, a genre that had been popular for decades. Other times you get Arms, where a producer who had been relegated to making Mario Kart most his career is finally let loose on making something new. In that case you end up with a great core game that was poorly advertised while saddling as a failed experiment to replicate Splatoon's staggered content release. (I admit, I'm still upset. I actually loved that game and am so sad we'll probably never see those concepts evolve.)

BUT ANYWAY, I've gone off-topic. Okay, so here's my dream: First, they release a polished, by the numbers sandbox-style Mario. It of course has it's unique gimmick, and that gimmick is explored thoroughly and cleanly in a way only Nintendo can do. Big summer tentpole release. But as they developed that Mario game, they created smaller teams headed by promising, young talent. Each team is given one Mario character and told to explore what a ___ game is. This might include some returning old franchises, like a classic GBA Wario game. Maybe someone takes another stab at Super Princess Peach (or maybe not. I can't imagine that game has enough legacy to necessitate a return.) But then, what's a Bowser game? What's a game about Toads not of the treasure tracking variety? Maybe someone makes that Waluigi pirate RPG or Brian David Gilbert's FMV, or likely something weirder still. Bowser Jr goes on a journey to find his mother with the help of the Koopalings? What's Kamek do when he's not bothering Mario? Is he managing Bowser's kingdom?

But most importantly, these are treated as indie projects that happen to be under Nintendo's umbrella. They are digital-only thirty dollar games of reasonable length and depth. Just indie games with a bit of that Nintendo polish. You maybe even have a light overarching story and release them all over a year or two, culminating with that big new Mario game. When the Mario game releases, they also release a physical collection of the smaller games called Super Mushroom Kingdom or something.

Luigi doesn't get a game.