I come visit Smashboards at midnight and a new "credible" leak surrounding on Simon Belmont and Ridey shows up. If that is true, then I already got two newcomer predictions wrong, hahaha! Sakurai being able to negotiate with Konami and figuring out how to implement Ridley in Smash were things I thought to be impossible.
Then I think about how Sakurai loves to challenge himself into implementing complex characters like Ryu and Bayonetta. And then I think about how Sakurai wanted Smash 4 to be the "ultimate character game", or something along those lines. If Sakurai manages to get both characters in the game, then I will applaud him highly for being willing to go so incredibly far in licensing and implementation to make Smash Switch's roster the best dreamy imaginary roster ever.
In regards to these characters and information possibly being revealed at E3, I doubt it. I can see Ridley being saved for that, but the other information would likely change to surprise people's expectations. We have a less than a month to go, and this leak I feel will get Sakurai to change which newcomers will be revealed at E3.
This leak just made speculation a lot more exciting!