Well, I suppose it's a fake leak? I'm not going to believe it anyway. Plus I don't see specific Palutena's Guidance conversations being added anytime soon.
Something else that may be interesting,
a new article on Source Gaming where Sakurai answers to some questions some time after Brawl's release. It may be interesting to see how the three character without Subspace Emissary role were almost going to be cut, and how Wolf got in over Krystal.
Another thing, Sakurai said that the Wii Remote was a reason why L-cancel was removed... I mean, I doubt that Wiimote only not being an option would have an impact on whether L-cancel was going to return or not, but it still sounds kinda dumb. In all honesty this control option is so terrible I wouldn't have minded it not being allowed, though at the same time I admit it was the only option for me at a time to do free-for-alls with four players.