It's a picture of Pyrosphere, and here's the translated caption:
"1. It's a stage surrounded by scorching heat and lava. It's a relatively simple layout with one main floating platform with a few smaller platforms above it, but there seems to be the shadow of "something" giant...? 2,3. The more detailed information on the tricks of this stage are still unclear, but this is not actually such a simple stage." from another person.
That strongly suggests Ridley is a stage hazard.
The scans also reveal a few other things, like new Mii costumes, Peach's forward air is now a crown slash, a really cool "Dark Kirby" color swap, and Rayman's trophy has a different expression. There might be more it reveals, but I can't read Japanese. But judging by the pictures it's not telling us anything else that we didn't already know, it's just covering the newcomers' specials. --- "The difference between fiction and reality is that fiction has to make sense." -Tom Clancy
People were surprised at this "new fact" in Brawl too. --- Guy With Sword used his Pokemon, Samurai Goroh, to kill Alfonzo so nothing gets done! All at the behest of the evil goddess Paluteena and her minion Kid Icarus.
Is that black thing Kirby on the first picture? If so, then that is a really interesting alt. costume. Is it something from a Kirby game that I somehow missed? --- The worst foe lies within the self. The official Mitochondria Eve on every board ever.
Actually it's more like "There've been rumours about the shadow of someone giant" . But yeah, I agree, this does point heavily towards Ridley being a stage boss. --- Du är min getsallad. Haha, på pungen lol Jag vill gräva bajs med din grävmaskin. Glass