Last December, I revealed that N was secretly a Zorua/Zoroark in Plasma's Folly. I originally intended for it to just be a twist in my story, but now I've come to believe that it might actually be canonical. There are numerous hints both for and against the theory, and I'd like to discuss some of them.
I've already talked about my reasoning for using it in PF, and most of the explanation could also apply to the games. His behavior is fairly odd, and could be attributed to the fact that he isn't human. However, it would seem as if he is fully aware that he's a Zoroark, in Black 2/White 2 at least. I think the real kicker is this scene in Black 2/White 2, which starts about two minutes into the video. While exploring Victory Road, the player encounters a random Zoroark. When they approach it, the Zoroark flees into the cave, and if you continue to follow it, it will lead you to the entrance of N's Castle before disappearing into it. When you enter the ruins, you immediately run into N. The timing and setup make it seem awfully suspicious, especially since you never see that Zoroark again. It's not in N's party-- the only Pokemon he has is Reshiram or Zekrom, depending on the game. The player in the video did not fully explore the ruins, but I highly doubt the Zoroark is present somewhere. Of course, I can't understand any of the dialogue-- N might be saying something that completely goes against the theory. A non-supporter could argue that the Zoroark belongs to N, and he commanded it to find the player and bring them to him. Again, it seems apparent that N no longer owns his Zoroark, or any of the Pokemon he used aside from Zekrom/Reshiram. Even if he does still have it, why did it completely disappear? And like I said earlier, everything is timed in such a weird manner-- the Zoroark enters the ruins, you chase after it, and N is standing right at the entrance inside. It's all too perfect. In Black/White's opening sequence, a young N is shown with a Zorua. If we ignore the thing about how the Zoroark disappears, it may seem possible that N still has the Zoroark because it was like a childhood friend to him. This seems unlikely, considering that one of the Pokemon you receive from N is a Zorua. N never battles you with a Zorua, so this seems to hint at how this might be the one we see in the opening.
One of the problems we have with this theory is the matter of how N was able to evolve from a Zorua to a Zoroark. I can't picture Ghetsis training him... Well, evolution through experience is just a game mechanic, after all. Maybe this wasn't required somehow? Or what if he gained experience from training his Pokemon... Pokemon training other Pokemon isn't something we see everyday, so we can't exactly confirm or deny this thought. What if he just has a sweet tooth and enjoys eating rare candies? N has been shown as both a child and a teenager; maybe his human form "evolves" as his Pokemon one does.
Another problem is when and where it will be officially revealed that N is a Zoroark. In a movie, perhaps? Wouldn't it be amazing if the Genesect movie involved Team Plasma, and N's true identity was unveiled at the end? As far as the games go, it's still possible that they might release a Gray version. Black 2 and White 2 are nothing like Platinum and the likes; they feature completely different plots and many new locations and features. If it is revealed that N is a Zoroark in-game, I highly doubt you'll be able to catch him.
There are a number of other small hints pointing to this theory. N physically resembles a Zoroark, with his ponytail and all. 'N' flipped sideways is a 'Z'. N claims that he was born from Pokemon, and it's been officially stated that Ghetsis is not his father.
There's no way to completely verify or disprove the theory at this point, although there are hints in both directions. And unless it's blatantly stated that he isn't a Zoroark, there's still a possibility that it's true. I will accept this theory as truth until it's officially denied. If it's not true, Gamefreak has been doing a really good job at throwing us red herrings. That was probably their intention, though.

Trololololo.