We have now reached the last part of Smash speculation; where the most intense debates occur and the most pressure is felt on remaining newcomers.
Smash Direct was an incredible Direct; in both good ways and bad. It was good because it gave us so much of what we wanted; improved online, awesome gameplay, great content representation, etc. It also introduce Gekkouga (or Greninja as commonly known) to the world, giving us an unexpected Pokémon newcomer, as well as separating Sheik from Zelda and Zero Suit Samus from Samus. However, it also likely spells Ridley's unfortunate fate as a stage hazard and many other characters were outright disconfirmed such as Saki, Samurai Goroh and many others.
With the skies now clearer, the fields have changed dramatically. The Getmatsu's leak, which came right before the Smash Direct, should it be true, has revealed to us the majority of newcomers that will be featured in this game. Not only have Mega Man, Wii Fit Trainer, Villager, Little Mac and Gekkouga made the cut, but it also seems as Pac-Man, Mii, Palutena, Chrom, Shulk and Chorus Guy will also be playable. However, the Getmatsu's leak does not indicate the entire roster has been revealed, as Rosalina was never leaked yet was made playable. It is a sure bet that Rosalina isn't the only non-leaked character that is playable.
It could very well be that we are at twelve newcomers right now. This means that there are only a few spots left for grabs and competition for these spots will be intense. Outside of what's been confirmed/leaked, I feel very strongly on only two additions; Mewtwo's returns and getting a retro newcomer and that's because they have both been hinted at (and in the former case, has everything going for it). Given that this would bring us up to fourteen additions, any possible additions is not guarantee and if so, will be minimal. King K. Rool is probably the most likely one of the bunch due to how much he has going for him and how little he has against him (only real argument now is the possibility of Dixie getting in instead, but the Kremling's appearance in Smash Run gives K. Rool the edge), but even he has a real chance of not showing up due to the possibility of us not getting fifteen or more newcomers. Other characters like Dixie Kong, Isaac, Krystal, Bandanna Dee and pretty much anything that hasn't been disconfirmed are also competing for these spots that may not even exist.
If counting the leaked/confirmed characters, we are looking at only two to five more possible additions left (as we will not get as much as Brawl). The scene has heated up seriously over the past few days and the speculation scene will only continue to burn until the game is released.
Nevertheless, I am extremely excited for this game. For the most part, this is the game Smash fans have been dreaming of and it looks as it could very well be the best yet. And as we ride into the sunset of the pre-game hype, it seems as the best has yet to come...