Anything with a fast moving camera needs 60 fps.  First person, by default is a fast moving camera.

 I'm expecting 720p/60fps on the Switch and 4k/60fps on the S2, likely upscaled from 1440p.  

Yeah I was surprised people thought it could be a next gen game. Definitely just looks like Switch-level graphics. I'd expect anything next gen to be wayyyy more graphically advanced than this. It looks great, but those graphics would be extremely disappointing for a next gen game.

First off, we have no idea if it is actually coming out on Switch 2. That's just a guess, though it may prove correct. Secondly, Switch is probably gonna have a 150m user base when this comes out, lots of sales of MP4 are gonna be on Switch even if it is cross gen. Very good chance if it is cross gen most sales will be on Switch not S2. S2 will almost certainly launch with 3D Mario and Mario Kart likely won't be far behind so it's not like they are gonna rely on a cross gen Switch upgraded fairly niche game to be the big launch game.

They've made it as a Switch game, if it is cross gen it'll likely just be a resolution upgrade, maybe at most they upgrade graphics slightly. Point is, it needs to run well on Switch, not run poorly on Switch. 30fps vs 60fps doesn't make a significant difference for most genres, 30fps works perfectly fine for most games, but first person shooters is one genre where 60fps makes a big difference. In first person shooters the camera pans around quickly compared to most other types of games, and 30fps makes that panning a little choppy or blurry, 60fps makes it smooth and clear.

So yeah, 60fps is a must have for MP4 on any system. That's a basic requirement of the game running well.

And combat in Prime games isn't "mid", it's just an exploration focused first person game. The shooting action is there and good when it is there, sometimes it's just knocking out an enemy or two easily and sometimes its straight up frantic, but exploration is the main game mechanic, shooting secondary. This isn't halo, it's metroid.

Also Metroid Prime Remastered is FANTASTIC! Don't go saying silly stuff like any part of that game is "mid" just because you read some review. That's probably among the best games ever made.

Retro has been making the game since 2018 or the very start of 2019 at the latest so it couldn't have been made with the Switch 2 as the main focus. It's like saying a game that started development in 2015 should've been made with the PS5 being the main focus.

Yea i was thinking that since every game today takes 4-5 years to make is everything gonna be  cross gen.

I don't think there is any silly about that. Most  games combat from that era hasn't ages well imo. Resident evil 4 2005 probably best game ever for it's time but now the combat is extremely dated and easy. Group enemies together head shot and kick, rinse and repeat, it was a snooze fest when i replayed it 10 years later.

"but the reviews said" Nice to know you don't think for yourself. You let a former Gamestop employee turned IGN "writer" or whatever decide for you. The only significant thing about Prime that aged was the controls which Prime Remastered fixed. A minor issue was the backtracking. Yes, it's a part of Metroid but in Prime, had a couple of progression sections that feel like going way out of your way and back. Something later games fixed.

I never said they decided for me but from everything I read the combat sounds simple and with no real challenge.  Lock on system for a fps doesn't sound fun. I will give it a try though. I also completed super Metroid like 8 years ago and honestly didn't think it was great just good at best.

Yeah most big multiplat games that started development within the past year are probably gonna release in 2028-2030 and be cross-gen. It won't impact Nintendo as much since they're gonna continue being close to a decade behind in terms of power but the leap from gen 7 level games to gen 8 level should still result in the Switch 2 getting less first party games in an average year compared to the Switch. Some of the games for the first 1-2 years will likely be cross-gen.

Metroid isn't Halo, and that is fine. Both are superb and their own thing. Metroid is about exploration and loneliness.