Radical Bones
Soul King
Ridley, King K.Rool, Bandanna Waddle Dee are all pretty popular around here. Take a look at the Smashboards support threads, there's still some pretty big names to tick off.I would have to disagree with that. Frankly there isn't much more Nintendo has to offer with simply first party franchises. Aside from Inkling, probably the most popular first party request I've seen is Spring Man from ARMS, and reception for that game has mostly just been "decent". If this guy is the popular one, who else could we possibly add to really make the roster pop out from other games?
Also, we don't necessarily need characters to sell Smash anymore. A handful of cool throwback characters is plenty to sell this giant nostalgia machine.
I dunno though. It's always been a 'celebration of Nintendo's history' in my eyes. More third-parties just water that down.