@
Groose
That is a good post on why K. Rool may be overrated, but I will offer a counter-argument.
I think your biggest flaw here is the logic that assumes characters are progressively added and cut as the game's development goes on. You say that if we get another five newcomers that it reduces the room for K. Rool to get in and this is not correct - the roster is already decided. For all we know, K. Rool was the first newcomer added to the game but has not been revealed. So we could honestly get another five, six, or even seven newcomers before we see K. Rool, it honestly doesn't make a difference. We don't know the size of the roster: on top of a "retro" or "shock" rep, we can get a DK rep.
At this point in the franchise, DK is also one of the only remaining series that is justified in more characters. It had 1 in SSB64 and Melee, 2 in Brawl. Its most recent games have been huge successes and revitalized interest in Donkey Kong. I can't think of any other series except Mario that has enjoyed nearly the same level of success. Certainly Kid Icarus, Metroid and new IPs from last generation didn't get that far. This is important as if you look at the newcomers Sakurai has added, they've all either been fan favorites (Little Mac, Mega Man) or hailed from incredibly well-selling, acclaimed game franchises (Rosalina, Wii Fit Trainer, Villager).
Another point I will counter is that Dixie Kong affects K. Rool's chances. As I said in the RTC thread, Dixie Kong has limited potential for her own moveset and most realistically has to clone Diddy's bananas or leap, to have a working set of four specials. The relevancy argument doesn't hold any water - look at Little Mac or Rosalina, these characters haven't been relevant for years. The best we can guess for relevancy is that around 2012, when the roster was finalized, Sakurai took stock of what was popular. At that time, Dixie Kong was far more obscured in DK than K. Rool.
I would argue as well that judging by the amount of moves inspired by DK64 in Diddy Kong's moveset, as well as the content dedicated to the Country series in general, Sakurai knows all about the series. I think if he is knowledgeable, he will choose the most respectable option, which is K. Rool, the main antagonist of all the Country games. Compared to other options - namely Kongs - K. Rool stands out as by far the most unique and interesting option, as well as the most popular.
I'd also like to say I don't mean to insult the argument you made, which I found well-reasoned. But I will stop short of endorsing it, out of the context of the RTC thread. I honestly don't see K. Rool that overrated when I look at what fans are saying on the internet. Smash Boards tend to be one of the most pro-K. Rool places, but generally I would say I agree that he's likely over unlikely. As @
BKupa666
said, no one is saying he's a shoo-in, just that, all things considered, we're justified in a little optimism.