Yesterday Alchemy was looking pretty sweet, but mmo champion has noted some changes to Alchemy on the PTR.
First of all it looks like the epic gem transmute is on a 20 hour shared cooldown. This seriously ruins the whole thing for Alchs. I mean if you were an alchemist you would focus on the most valuable gem a cardinal ruby transmute (which now requires 1 eternal fire and 1 scarlet ruby).
I liked the former system better it gave a use for the rare gems and would keep epic gem prices pretty sane. Lets hope the devs see it this way and switch it back.
2 weeks ago