These are the upcoming changes to Jewelcrafting, and any JC should definitely take note, because there is plenty of profit to be had.
Most obviously, the changes to Chaotic ought to make this gem much more popular, so expect to move a bunch of these when the patch goes live. If you don't already have the cut, or even if you're not a JC, you should consider stocking up on a few of these from off the AH.
The prices of red gems should also see a huge increase, as people re-gem their gear to replace the sub-optimal green/yellow/blue gems they had. So be sure to stock up on Inferno Ruby before hand, or even grab the cut gems off the AH. You can even try cutting Carnelian, or getting cut Carnelian gems. If the price of red gems goes up as much as I think it will, there will be plenty of people unwilling to pay those prices, so sell them cut Carnelians instead.
And lastly, there are the new metas. I have no idea if you can buy the cut from the JC vendor, or if they are exclusively BoE recipes. In case you can trade tokens for them, start saving now. Though it's not guaranteed that the patch will hit this Tuesday, if it does there's still time to save up four tokens (Sat, Sun, Mon, Tue). If they are exclusively drops, hop on your skinner and farm up some leather while you grind for these. If you don't have a skinner, I'm sure it won't take long for someone to find a good place to farm these. A dungeon, perhaps. I'll personally be hitting up the leather farming spot I discussed in my previous post. These metas will likely be BiS for most classes, so do what you can to get them early and make a fortune!