Short, but sweet, update for today. Exams start next week, no time for lengthy posts!
If you don't obsessively check Wowhead for the latest news, you might not have noticed nearly a thousand new additions to their PTR database. Mostly just a bunch of new armor sets, but there are some spectacular gold making opportunities buried within.
Most notable are the new entry level PvP armor sets. I'd expect great sales from these at the start of next season as new players try to catch up their gear. A very interesting new addition is the availability of crafted PvP rings, cloaks, necks, and relics. Oddly enough, these accessories are listed as BoP. I don't see the logic in this, so hopefully they'll become BoE by the time the patch rolls around (not like Scribes and JCs need MORE ways to make gold). Material costs for the new garb don't seem any different than the current gear, so plan accordingly. The costs for the new accessories are fairly low too (a few rare gems and some volatiles for the jewelry, for example).
There are also new BoE epics, though for the casual auctioneer they're likely to be out of reach. Each take eight Living Embers which presumably drop off 4.2 raid bosses and might be purchasable by VP (note that current VP are likely to become JP next patch, so hoarding them won't help). Though that doesn't seem too bad (just buy them off the AH or other players!), each piece requires 3 Chaos Orbs or 8 Dream Cloth for tailors, which still seem to be BoP.
And finally, we have new bags! Best of all, there's a 36 slot JC bag! Less exciting, a 36 slot Inscription bag and a 36 slot Mining bag. Tailors can make the JC and Scribe back for 3 Dreamcloth, so stockpiling a few will probably be worth it. The mining bag costs two Pristine Hides and twenty Volatile Earth. Personally, I don't think the mining bag will get much love, but I'd expect the JC bags to sell like crazy and the Scribe bags to be up there too.
Suspiciously absent is any indication of Epic Gems.