Holy cow, this thread's going at light speed! Though I guess in that case, the General Thread's been going at ludicrous speed all day...
I honestly don't know how to feel about this leak. On one hand, the characters all make sense for Sakurai to pick (Banjo, Isaac, and Geno have extreme popularity, Mach Rider, Geno, and Chorus Kids were all considered by Sakurai at one point, and Ken and Shadow are basically obligatory picks for Echoes), and if it is fake, it would require an unprecedented amount of effort on the part of the creator to put the image together and come up with a convincing backstory to it. On the other hand, it is yet another blurry image leak, and 7 more characters with only a month until release just doesn't sit well with me, especially since it directly contradicts what Sakurai has said about how many reveals to expect. I mean, how, realistically, would they manage to fit 7 reveals into the span of 44 days, even if 2 of them are Echoes? Forgive me, but I don't see it happening. I think I'm leaning slightly towards Team Fake on this one, but... I dunno. It's inconclusive.
That said, either way it ends up going, I do appreciate this leak just for lifting the speculation scene from the one-note stupor of "Verg-Box-Kencineroar" discussion we've been stuck in since Isabelle's reveal. This leak just raised the bar for all future leaks, real or fake.