Ever since Rare was brought out by Microsoft, the series hasn't been the same. Back then, we used to get new Donkey Kong games quite frequently, but over the years, it seems that the series has pretty much fallen into obscurity. Yes, I'm well aware of games like Donkey Konga (which in my opinion, was garbage), as well as Jungle Beat, King of Swing, Barrel Blast, Jungle Climber (all four, which I enjoyed), but it wasn't quite the same. While Jungle Beat was fun and everything, it was still a bit of a disappointment, since the developers purposely went out of their way exclude almost everything that made up the Donkey Kong Country series (even going so far as to claim that it wasn't "fresh enough for today"; which is a load of crap, seeing how they have no problems bringing back older Mario characters, which have existed long before the DKC series itself).
The other three games were fun, too, but I'm still waiting for an actual Donkey Kong platformer on the Wii (aside from New Play Control! Donkey Kong Jungle Beat), which is either in the same style as the DKC series and/or Donkey Kong 64. For quite a few years now (ever since 2005), it's been said several times that a Donkey Kong platformer was going to appear at E3, and so far, that hasn't happened yet. Other than some article in the Famitsu magazine (which isn't in any way trustworthy, since they made up that lie about Paper Mario being ported to the DS; and as a result, I no longer believe anything they have to say), there's no real evidence that it even exists.
The other three games were fun, too, but I'm still waiting for an actual Donkey Kong platformer on the Wii (aside from New Play Control! Donkey Kong Jungle Beat), which is either in the same style as the DKC series and/or Donkey Kong 64. For quite a few years now (ever since 2005), it's been said several times that a Donkey Kong platformer was going to appear at E3, and so far, that hasn't happened yet. Other than some article in the Famitsu magazine (which isn't in any way trustworthy, since they made up that lie about Paper Mario being ported to the DS; and as a result, I no longer believe anything they have to say), there's no real evidence that it even exists.