Reposting this since this forum could use the activity.
In Black 2 and White 2, you can obtain some Pokemon that once belonged to N. These Pokemon include the Zorua you're given in Driftveil plus a bunch that can be found in the wild.
See here for more details and a list of available Pokemon.
So, did you use any of N's Pokemon on your BW2 games?
(Please explain your answers a bit - don't just post something like "No I didn't" or "I used ___"!)
I did not use any of N's Pokemon on my main teams since there were other Pokemon I wanted to use instead. I haven't obtained that many of his Pokemon to begin with either.
I think I did train the Zorua for evolution purposes, though, when I was working on my White 2 Pokedex.