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 Pikmin franchise has been a part of Smash since Super Smash Bros. Brawl, and was really the number one new series everyone was guessing was going to be added during that time. Olimar is the only character from that series, but he has Alph as an alternate costume in Super Smash Bros. for 3DS and Wii U.
Returning Characters
Olimar will probably return. I'd be really shocked if we don't see that happen.
New Characters
Louie feels more like alternate costume material, similar to Alph, than his own character, but it's still a possibility - beyond that, there's nobody else that seems to have much of a chance.
Returning Stages
Garden of Hope is a stage that looks pretty likely and could easily fit well.
New Stages
Something from Pikmin 3, the possible (but not yet released) Pikmin 4, or Hey, Pikmin. Personally, I think an underground stage would be neat.
Author's Note: What are your thoughts on the Pikmin franchise? What Pikmin related content would you like to see in Smash for Switch? Let us know in the comments below!