I'm not saying all the sales are due to this, but I noticed a spike in them after the rumor hit. So guessing at least some people who were considering selling decided to try and get ahead of a potential VE that would probably make selling an "old" game harder.
If the really do a new art package that looks sweet I have no doubt they'll sell theme easily. Hell, I might buy one myself. You can't use Pinside to gauge demand overmuch really. 10 people looking for a pin can make it look like there's a huge swell of interest.