The shuffle is still around and more flexible than ever. This is my ore purchasing data for the last month, mind you I reset my history like 17 days ago iirc. And I do it on 4 toons.

You want a jc (4 if you want to box it)
You want an alchemist
You want an enchanter (4 ideally if you want to box it)

- Prospect ore
- Craft gems from the rare uncuts (there are no epic gems this time around) and sell them
-You will get a lot of green quality uncuts as well (common)
- depending on your server
*you just bulk craft them into gems and vendor the gems
* or you craft rings/necks, either try to sell the rare procs on the AH, and either vendor or disenchant the green rings/necks for enchanting mats
* craft enchanting scrolls and sell those
on my realm its worth it to transmute 3 of the 6 common color gems into rare quality gems, since they have a good proc rate to yield extra
depending on the day I transmute them into primal diamonds, which can result once more into extra procs
then I either sell the primal diamonds on the AH (there is a legendary meta gem after completing a whole questline, and if you have to change that gem for a gear upgrade, you need to turn in 5 primal diamonds, so they are in demand) or I craft meta gems and sell those.

For me on my server, I make anywhere between 30 and 40% profit on the ore that I buy. It takes time of course.