Before this discussion ends, I say this with cautionary wariness to the K. Rool fan-base, stay away from the dreadful General Rumors and Leaks discussion page. One of the more highly respected community members considered K. Rool's absence to be questionable decision, and the hordes of sycophantic leak supporters hounded on him with aggressive ad-hominem attacks ("You're just a butt-hurt K. Rool fan", "The K. Rool fan-base isn't huge, its just loud", etc.), lest "the best roster ever" should be not considered as such.
I abide by a simple rule - if Sakurai does something praise-worthy, I will praise him for it, and if Sakurai does something condemn-worthy, I will condemn him for it. For the majority of Sakurai's decision-making process, I have praised it. Over there, however, only the first-half holds true for them. I suppose it is not the "leak" that persistently annoys me (the prospect of playing as Roy, Wendy, and Morton Koopa Jr. would excite me) as much as the initial hostility of "leak" supporters a week ago.
Notwithstanding the negativity of this post (which I apologize for, I had to get it out of my system) and K. Rool's absence as a playable character, this roster would still be substantially good. It just would not be as substantially good if K. Rool was playable.
Here is to hope.