Someone mentioned they're tired of the Smash Bros knock-the-opponent-off-the-screen formula, but I can't find the post.
Pfft. Whoever said that is dumb.
Let me give you some real winning ideas of how to shake up Nintendo franchises.
1. Open World Mario - The princess is captured by Bowser being held in his Castle at
Death Monutain World 8 The Lava Province. Starting out from Peach's castle in the center of the Mushroom Kingdom, Mario must navigate the tricky platforming open world of the Mushroom Kingdom as he scales to great heights with all manner of wacky power-ups that only last for a certain amount of time and then you wear off requiring you to constantly find more power-ups from other enemies. There are also 7 Koopaling Castles in 7 other Mushroom Kingdom provinces that Mario can defeat to liberate the region and gain a map of that section as well as giving him one of the seven keys needed to unlock a chest guarded by Wart who rules a dreamlike kingdom in the clouds which you get to by a giant beanstalk in the Forest of Illusion region. In the chest is the F.L.U.D.D. device allowing Mario to operate much better in the tricky 3D platforming world. I could go into more detail but I don't want to spoil all the surprises. Just don't try to do any jumping or running in the rain as Mario will keep slipping on the wet ground and wiping out.
2. Open World Pokémon - I don't have much to elaborate on since I haven't really played much of the Pokémon series but I imagine a giant open world with wild Pokémon in different regions already sounds like a winner. At the center of the map is Ralis, the biggest town in all of Farnex which is what this world is called. (That all sounds appropriately Pokémon-y.) In that town, there is a grand Pokémon Tournament held every year and you want to enter it to prove yourself the best. There are a few ways to do that and you can try to accomplish it from the start of the game if you want to but you are best to explore the world and find other towns which have things called Gyms where the most powerful Pokémon trainer of that town lives. If you can beat the various trainers then you will get a badge for the town. If you can get all the badges then you can instantly enter the Pokémon Tournament as a top seed and face the current top Farnex Pokémon trainer for the top title spot. There are also some legendary Pokémon causing trouble in the Farnex region and if you can stop them then they can be yours giving you much better Pokémon than the disposable / degradable ones you encounter in the wild. Just don't do any battling in the rain as the water will affect your Pokeballs causing them to explode releasing all the Pokémon you've caught.
3. Open World Star Fox - Fox and the gang are called over to the neighboring Talyl system because of a distress signal from their pal Katt Monroe. Upon landing on the planet, Fox and friends learn about a great evil that has awoken and captured their friend in the castle of the royal Monarchy that rules this planet in the center of the world. Heading out on foot to explore.... on foot? Never mind. Scrap this idea. Unless..... Yes! There are dinosaurs on this planet! And Fox can even mount and ride them around the planet. Even a big Tyrannosaurus Rex. All to help rescue his friend and unlock the secrets of what caused this planet's devastation 100 years ago. Biggest game highlight: Fox gains entry into a secret Dinosaur desert region by pretending to be a girl Fox named Krystal. Just don't try doing any dino-riding in the rain. It turns out rain is the reason the dinosaurs went extinct....
4. Open World Kirby - Kind of the same as Open World Mario but a bit more easier with more collectables to find and a more cute and cheery world. It may lack for story and challenge but you'll want to keep playing it for the music. And in a further surprise twist, there is no rain in this game! It's always sunny and bright. However, there are parasol Waddle-Dee enemies that you can beat up and take their umbrellas. In a great piece of irony, the one game that gives you an item to combat the rain is the one game that doesn't have it. Nintendo! You always keep us fooled. We never know what you're going to decide to do next.
5. Open World F-Zero - You and 49 other racers begin a race at the edge of Mute City with no idea where the finish line is. Drive over an incredibly large world full of loop-de-loops and tight corners through various kinds of racing terrains and regions as you attempt to find the finish line first.
Hint: You may want to go to the middle of the map. Just don't try driving in the rain or your F-Zero craft will spontaneously combust.
I got about 10 more ideas but I got to work on them a bit more. It's not easy coming up with original and creative ideas like these to completely revolutionize various longstanding franchises like this with never before seen ideas as these. But it's worth it when the money comes pouring in as Nintendo buys all my ideas.