it could mean any number of things, but i think it's worth noting that these are the poll entries/suggestions from japanese fans that Sakurai is choosing to present to the public.
references are:
Megaman (Megaman)
Claus (MOTHER 3)
Lucas (MOTHER 3)
King K. Rool (DK Country)
King Dedede (Kirby)
Geno (Super Mario Bros. RPG)
Professor Kawashima (Brain Age)
Kalas (Batten Kaitos)
Sigurd (Fire Emblem)
Black Shadow (F-Zero)
Dragon Chan (Super Punch-Out!!!)
G-Red (Gotchaforce)
Hammer Bros. (Super Mario Bros.)
Oguma (Fire Emblem)
Captain Olimar (Pikmin)
Lip (Panel de Pon)
Ike (Fire Emblem)
Black Knight (Fire Emblem)
Toad (Super Mario Bros. 2)
Lolo and Lala (Kirby)
Simon Belmont (Castlevania)
Ray 01 (Custom Robo)
Princess Katia (Lost Kingdom)
Sukapon (Joy Mecha Fight)
Colonel Volgin (Metal Gear Solid 3)
Lupus (Jet Force Gemini)
Ganondorf/Ganon (Legend of Zelda)
Link (Wind Waker)
Ninten (MOTHER)
Sora (Kingdom Hearts)
Ridley (Metroid)
Takamaru (Nazo no Murasamejou)
Little Mac (Mike Tyson's Punch-Out!!!)
Diddy & Dixie Kong (DK Country) [Ice Climber-type is sugested]
Jeff (Earthbound)
Ogre (Shin Oni ga Shima)
#111 Cat eye Link?
Sakurai said no manga characters.
the poll will end around July.
that's all we can discern so far. let me know if something changes on the
WEBSITE and i'll update.