GTN Predictions for 12xp

I'm a regularly returning player (this'll be my 3rd or 4th stretch as a subscriber, thanks 100% to 12xp) and I jumped in a couple of nights ago to prepare.

Since I enjoy playing the GTN, I've been thinking about what would make good investments before 12xp drops.

If nothing else, I assume we should expect a huge influx of players. Does anyone know what that generally does to prices?