That'll be Bandana Waddle Dee for me, as he's the only other character I really want. That said, he's more recent, so in less danger, so to speak; King K. Rool absolutely comes first - I've been wanting to see him in since Melee, and his appearance in Smash and his return to his own franchise are both way overdue.
I thought it was localised by Nintendo Europe?
Or did they redo it for North America? It wouldn't surprise me given the several, sometimes redundant, instances of that lately...
And that Amiibo!
You're not the only one. At all. Whilst I enjoyed Donkey Kong Country Returns, I still haven't gotten around to picking up Tropical Freeze, not because I suspect it's a bad game, but because the other Kongs are still just power-ups, which has deprioritised it for me.
I just don't like Donkey quite as much as I like Diddy and Dixie, and, this probably sounds stupid, but I don't really like the Donkey Kong Country name being traded on with some of its key features still absent. As per those quotes that were posted several pages ago, when you buy a game in a particular series you expect particular things, and for DKC right now, two of those things (playing as any of the available Kongs from the beginning, and K. Rool and the Kremlings) are sorely missing.
I was thinking about this very same thing recently, and I'm inclined to agree. I know others who think the same thing, too, funnily enough. I just hope we're all correct about that!
Then it'll be Waluigi Time.