ftfy

well that news was already out before 1. april. but still I think it's only a rumor.

This is probably a pipe dream, but I'd love to see this supposed 3D Mario package come with a full-on remake of Mario 64. Sunshine perhaps isn't worth the effort and the Galaxies are pretty enough already that just an upres and maybe a bit of tweaking is probably enough. But I'd love to see something similar to the Crash Bandicoot revamp done to this game. For my money anyway, it's still the best 3D Mario title (with Odyssey a close second) so it deserves a proper sprucing up.

While I doubt they will, they should remake 64 DS instead.  An all around improvement, and I'd love to play the game with actual analog controls.  

Yes.  Also a kind of basic but fun multiplayer mode, and a few added levels (each character is unlocked through a boss battle in a new world). 

Eh... I would not really be down for that. If you're going to go with Odyssey style gameplay, you're better off just designing levels from scratch that are designed for that kind of thing.  Otherwise, you're shoving an Odyssey shaped peg into a 64 shaped hole, and you have something that would be less appealing than either an odyssey sequel or a 64 remake to their respective markets.

"3D Mario All-Stars" has a good ring to it.
Collection of all the 3D Mario games.

SNES style. I would buy into that.

I know people want them all in one cartridge, but I'd only want to play Sunshine so I'd like to be able to buy it stand alone. While this rumor makes sense and is believable, I ain't putting much stock in it, we're still waiting for that Metroid Prime collection after all.

On one hand, I'm in. I would like to replay Sunshine and the Galaxy games on my Switch and could let my girlfriend play them to get her more into this sort of games. I watched a video of Sunshine running in 1080p 60fps with high-res textures and the game looked very modern. Sounds like a good idea to me. So that's the good part.

On the other hand I still can't believe how much Nintendo is neglecting 2D Mario. It's absolutely baffling. 3D Mario gets a collection, a 3D World remake and Odyssey and all 2D Mario gets is a port of New Super Mario Bros. U and ports for NSO? I hope they'll also have a great new 2D Mario game ready. And I don't mean another copy-paste "New" Super Mario Bros. game but an actual new one. One with better world-building than "grassland, desert, beach, ice, jungle, mountain, clouds, fire" in this exact order.

It's the same story with "Switch Sports". They are even putting bowling into the Clubhouse games collection, but a full-fledged title? Nope! 

3D Mario isn't getting anything yet though.