OK... so here's my thinking for the day...
It occurs to me that gold farmers are prolly gonna be fucked for a month or two after BC comes out. There will not be much demand for buying gold while folks are leveling. Likewise, the gold farmers will have to rely on stockpiles until they have 70s and can maximize their farming efficiency (and they wont have knowledge of the game initially). Only once a lot of peopel hit 70 will the demand for gold creep back in.
During this process, we can expect crazy inflationary pressures in some aspects of the game. Overall inflation may not happen quite so fast, if anything because the vendor prices will remain flat (and repair costs will go up, esp if you have tier3 and think you're fuckin cool questing or grinding in that gear
)
I cant say i can imagine all the implications of this on the AH and economy, however... i realized that it wont be long before folks making twinks become ready to invest much, much more on their stuff. We're going to see an explosion in low level chars again, esp in the new racial zones... so that means there will be an increase of supplies from them (and demand for other stuff). It will be a tricky market.
However, my thinking is that from now through the first week after BC is out is a damn good time to buy up twink gear because if twinking doesnt die entirely then folks wanting those new twink chars are gonna be dropping a pretty penny on them eventually.
My assumption is that very few folks will rush immediately to make new twinks. Those making new alts initially will be intending to level them to 70 eventually (or just curious about the new races). Folks may not go back to making twinks until they hit 70 or just get bored of the grind to 70.
In my experience in beta so far, there's a lot more cash flowing in. I made like 100-120g just from quest rewards and such in a day (lvl 61). When folks go to make twinks after a month or so after BC, im willing to bet they'll be blowing a shitload more than they would have in the past.
If you've taken the time to read this far then i dont even have to explicitly say the underlying point.
So... the question is what the new ally shamans and horde pallies will want at lvl 19 and 29.