Originally Posted by Fat CynicalGiant
For some reason they decided to add Dunsparce to the Unova dex for BW2. At first I thought nothing of it, but now Im a little suspicious because of this new generation not having entirely new pokemon in it. The inclusion of older pokemon means a possibility of new evolutions.
They also seemed to lower the levels of which he learned abilities by quite a bit. That probably doesn't mean much, but it would be pretty great if it did mean some form of evolution.
I am really hoping Dunsparce does evolve in X/Y now. I also noticed that they included a lot of 3rd gen pokemon in BW2 along with all of the pokemon that received new evolutions in Gen 4.
You're probably overthinking: stuff like Azumarill and Riolu had movepool overhauls too. They probably just modded the movesets since Azumarill and Riolu come early, like Dunsparce.
Besides having older guys in a new gen may or may not guarantee evolution (read: Castform)