In any case, I randomly woke up at 3am this morning, saw the pic, and went back to sleep. In doing so, I had an SSB4 related dream.
It was Palutena's reveal trailer, but it also included other character reveals, a stage reveal, and a new game mode reveal.
After showing off Palutena, it showed off a new stage based on the ships from Subspace Emissary flying into Subspace, so like Poke Floats, but fighting on the Falcon Flyer, Samus' Starship, Halberd, etc. In showing off the stage, they introduced a new character, Pilot Samus, who fights in a miniature spaceship Nintendo Land style during the whole fight, leading everyone to give up on Ridley since Pilot Samus is our new Metroid character.
They then showed off a new game mode, Smash World, an absolutely gigantic open world adventure area, Smash styled. You just wander around a huge land that combines every Nintendo based world, patrolling and saving people from Nintendo villains, or terrorizing them with your powers.
Then, at the end, they introduced three new third party characters: Chun-Li, Liu Kang, and Ryu Hayabusa. This led to everyone believing that these would be our full roster of third parties, so everyone believed Snake was cut.