Note: These articles are more for discussion purposes before E3. They'll be short, sweet, and to the point for a brief recap and looking into possible characters/stages for each series in Smash Bros. These also go by a "Don't expect too much" philosophy. Please remember to be civil in the comments discussion.
The Metroid franchise is one of Nintendo's more niche franchises. Samus appeared in Smash 64 with one stage, and then in Melee with two. Brawl added Zero Suit Samus, but didn't give her a separate slot, and gave the series three stages. The series had three stages across both versions of Smash 3DS/Wii U and gave Zero Suit Samus her own character slot and a new Final Smash.
So, what can we expect this time?
There's a 0.1% chance Samus doesn't reappear. About the same for Zero Suit Samus.
If anything does happen, eyes are probably all on Ridley. While the development team has gone off the record to say that Ridley is very big, Sakurai and co. have been known to make statements and double back on them, and Ridley is an unbelievably requested newcomer for Super Smash Bros 4. The problem with a character like Ridley really comes down to development time - Is he worth the time multiple other characters would be? I'd say yes, but that doesn't mean it will happen. Sylux is another possibility, but I wouldn't hold my breath on it.
Returning StagesWe'll most likely see Brinstar return again. Anything else is up in the air.
Metroid Prime 4, Metroid: Samus Returns, and Metroid Prime: Federation Force may all serve as potential sources for new stages; particularly Prime 4.
Author's Note: What are your thoughts on the Metroid franchise? What Metroid related content would you like to see in Smash for Switch? Let us know in the comments below!