I wouldn't be against the idea of making games about other characters from the Metroid Universe like other bounty hunters/mercenaries or the soldiers from the federation if it weren't for the fact that the last games starring Samus both 2D and 3D or that weren't remakes came out more than a decade ago, this comment basically sums it up pretty well:

They haven't released a original game in a very long time and then they release a "chibi" spinoff that no one asked for, a "chibi" spinoff for God's sake, Metroid is one of the first few Nintendo franchises that deviated from the cute, tiny, cartoony or goofy aesthetics, how did they expect the people to react when they announced it, moreso with the blastball minigame upfront, if anything it should have been as this comment says:

Finally while i'm not totally against the idea of reimagining a game with similar thematic, i would first go with what mZuzek says: 

why aren't they releasing the older games as with e-shop/virtual console? lots of new gamers whose first console is the switch could learn about the best metroid releases: Zero Mission and Samus Returns (to make it accessible), Super Metroid and Fusion in the 2Ds, and Metroid Prime trilogy and maybe a reworked Prime hunters for the 3D case, all of those are great games even to this day, they have been too cautious? or uninterested after the Other M fiasco, and lots of people only know Samus as the sexy latex action Barbie-like girl with stupid high heels from Smash Bros for almost a decade now.

As a person who genuinely liked Federation Force I still think it would be best to leave it behind. I still challenge people to play it before judging it, however. It's really not that bad of a game. People would have liked it a lot more if Nintendo simply said that they were working on a bigger Metroid game next to it.

Oh hell no.

Let that shit die.

Metroid should never ever ever ever never ever be multiplayer.

No pun intended but Metroid is about a sense of dread. Solitude. Atmospheric. Turning it into online shooters and shitty Rocket League clones destroy that. Some series just don't work branching out. They can do the Fed Force concept again WITHOUT the Metroid name. Every time Metroid tries to break away from what made it good it fails. Metroid Dread is everything Metroid SHOULD BE. Metroid Prime is everything Metroid SHOULD BE. Hunters, Fed Force is not. Metroid is a great series but it's not as versatile what you can do with it like Zelda or Mario.

they had a cool concept with great potential but poor execution, so it's worth giving it another chance

3DS was definitely not the right platform for this move, and the character models look very unappealing to begin with

I'm sure Nintendo could retweak the game to make it work, but not within the Metroid series, not anymore. The terrible timing of Federation Force stained the title too much, better take the gameplay and try to use it for a new IP.

I don't think so. The bad PR for Federation Force hurt its sales and would hurt sales of a heavily expanded remake or sequel.

Tbh I feel like giving a third person 3d game another go would be a much better move. OM was a flawed game held back by silly choices by when the game got going it showed the potential of the approach. An example is the clash with Nightmare or the post game section, another game with better care and handling can easily become a key title in the library. 

Metroid has the potential to have three different approaches at once in 2D, first person and third person 3d. 

Zelda never had good story.

Ooooh my bad, I am completely incapable of detecting sarcasm, sorry.

To give my post context, I didn't mean that Zelda games have bad stories, just that the story is generally just okay and it's more the gameplay that makes them great, like all Nintendo games. Just my humble opinion.

Majora's Mask has a great story if you're including sidequests (and given the structure of the game, not really sure why you wouldn't).