I'm going to try and enjoy the game the same way I enjoyed Hunters.
If nothing else, 4 player co-op guarantees some shenanigans with friends.
I played Hunters once!
Multiplayer only, it was okay, might've been better if I'd had more time with it.
Hopefully Federation Force'll have good multiplayer too.
Hell, I'm hopeful that Federation Force'll be good all-around, it seems interesting. And Nintendo's proven that they can make a fun multiplayer shooter (do I need to say which one?), as well as an enjoyable single-player game from a first-person perspective (Metroid Prime, as well as 2, and I've heard 3 is great too), so I'm confident they'll pull it off.
I'd personally be more interested in a strategy game with this sort of concept (maybe it's just me, but it might be cool to see Federation army and maybe spaceships versus Space Pirates / all the Metroid forms / Phazon & Dark Samus / the Ing from Echoes, maybe with the ability to call in Samus for backup if you're getting wrecked), but I'm looking forward to Federation Force as it is as well.
As for Metroids I've played, I've played all of them except Prime 3, Hunters, Pinball and Other M.
I liked Metroid II: Return of Samus as a kid until I got hopelessly lost. The original Metroid is one I haven't played much, but it's good for when it was made. I prefer Zero Mission though, feels like a great updating of a classic. Fusion was great for the second Metroid I ever played, and I still like it, though I wish they'd follow it up, if only so we can see the Fusion Suit in 3D. Metroid Prime is one of my favorite games ever, though I need to finish it one of these days. Prime 2 was good, maybe better than the original, though back then I was too scared of Bloggs to go into Torvus Bog so I never finished it, so I dunno. I need to do that someday, if I ever find my GameCube. Never played Prime 3, but I've heard good things. Hunters I covered near the start of this post. Never wanted to play Prime Pinball, I don't like pinball all that much. Other M... Well, the gameplay looks solid (though it looks a bit too easy with that dodge move, but I haven't played so I dunno), though I didn't care for the story from what I've seen of it (
so much narration).
I heard something about a Metroid Dread a long time back, is that still a thing?
On a final note, do you think we'll ever see a game that takes place after Fusion? Because I'd really like to see that.