If this is real, then nobody's going to take Sakurai's 'curb your expectations' comments seriously ever again. Could lead to nasty situations where he's being serious (i.e. most of the time) and people get their hopes up too high. While this is definitely an impressive fake - if fake; great if it isn't - Sakurai was probably being completely genuine, not overly modest/taking us on a ruse cruise, when he said not to expect many newcomers.
Also, if all these characters are going to be in the base game, haven't they slightly limited their options for DLC? True, there are a whole load of third-party big hitters they could still include, but I was expecting at least one or two of the big fan requests to be saved for DLC.