New patches always bring unique and often limited-time-only opportunities to cash in. To take advantage of them you have to be aware, come prepared, and be willing to invest in anything from materials to spending some quality time with the Auction House.
So what can you get out of patch 3.2? Scanning through the latest PTR notes, here are some potential gold-making highlights. Remember, results may vary:
Strangulate, a Death Knight ranged ability that silences, will soon also apply a 3 second Interrupt effect on non-player controlled targets (read: not for PvP). While a few other abilities are also getting this buff, you might note that there is actually a Glyph of Strangulate, which skims 20 seconds off its cooldown.
Considering how many fights depend on the tank and DPS to constantly be interrupting effects (General Vezax anyone?), this particular glyph might become more popular.
Frustrated Paladins everywhere probably have dropped Glyph of Exorcism from their PvP specs, but with 3.2 making it usable on players again, they may be wanting it back.
Glyph of Claw is being added to the game, and you can expect pretty much all ferals pre-level 50 (when they train Mangle) to pick it up. Although you won't be able to make this pre-patch, you could farm the materials.