Shower thought guys(from last night but only posting it here now)
So we haven't had any information about KI other then Pit and Dark Pit on the blog. No Palutena, none of that new item, no stage, and no music.. That later one is the key. So far, on the blog, new music shown off on it has lead to 2 things. if you don't have a unique newcomer show up before your music is shown, then you won't have a unique, as shown with Simon and Castlevania music, K rool and DK music, and recently Isabelle and Animal crossing. Its a thin theory but it holds up so far. You may be saying that SF already got music and Ken seems likely. But that would be an echo, which it could still work for, as we got a metroid music before Dark Samus.
So where am I going with this? Well... what if we get a surprise like Isabelle, and Medusa is not an echo, but unique? I am expecting her as an echo, but a unique would be cool, and her reveal trailer would be awesome.
Also a shower though, what characters they picked to be in the demo. They picked popular ones, returning ones, and new ones, but there are some obvious ones missing. Peach and Daisy are on, especially Daisy as she was the only new character not in the demo. Diddy Kong was Missing, Robin was missing, and of course Palutena is missing. What do those 3 have in common? well all could have something in their movesets that could give away echos/new characters. Diddy with how his moveset could have been tweeked to allow a Dixie echo(plus what his changed FS is), Robin because the FS had to be changed to allow Chrom in, and Palutena supposidly because of her Medusa alt color. *tin foil hat theories expand!*
Last thought I had, but more just now: what if in story mode, Medusa is the leader of all the bad guys in story mode, or at least all the playable ones. She seems like the one that would gather the villains from all these different universes and worlds and have the power to command them too. I can see her leading Bowser, Bowser Jr and the koopalings, Wario, Ganondorf, Ridley, Dark Samus, K Rool, Mewtwo(i can see them making him on the bad side at first), King Dedede(the goof ball villain she grabs just to us him, because everyone uses Dedede), and maybe some other villains coming like Shadow and Dark Shadow. She of course could have grabbed other bosses too, like Dracula, Rathalos, Dr Eggman, Metal Face, Big yellow/Dr Wily, and Skullkid. And maybe it turns out Hades is secretly behind the scenes too, and once Medusa finds that out she then gets to beat him up, a satisfying end considering how upraising went.