I know that a lot of people here are worried about King K. Rool because the Roy and Ryu leak, but I don't see what exactly is the problem here.
Roy and Ryu can't be ballot characters as they have music files on them that were made before E3. This makes me think that they were one of the characters made prior to the ballot. I also still think that Wolf is likely in the works as well and I still think it could be shown at E3. I will be shocked if he doesn't make it as DLC. If Mewtwo, Lucas, Wolf, and Roy, the four most popular veterans, are non-ballot DLC, guess who is the most wanted character period? None other than King K. Rool. This puts him in a class above everyone else when it comes to popularity.
If anything, I think this is good news for him. I feel a lot less confident in Inklings given that I don't see them as E3 reveals anymore (and as such wouldn't be able to cross-promote Splatoon) and I can't think of a newcomer other than maybe Chorus Men (and even then only if Namco can get them to work) that would get priority over King K. Rool unless Sakurai hates him (and while I don't think Sakurai cares about Donkey Kong that much, it's extreme to say he hates it). That's not to say he is a shoe-in and I will hold Nintendo accountable if they try to pass off a character clearly added for other reasons as the character added due to the Smash Ballot, but I do feel more optimistic about his odds than I have had since the end of 2013. Plus the fact that Roy and Ryu are non-Ballot characters makes me think that we will see more DLC characters than we think. I expect somewhere between seven to nine characters; Mewtwo, Lucas, Wolf, Roy, Ryu, and at least two Nintendo newcomers. I have a feeling King K. Rool will be one of the remaining 2-4 characters.
Regardless, I will continue to support King K. Rool until the every end. So until then, let's kroc the vote for the Kremling King to get in as Smash DLC.