Information about a new patch usually comes as a trickle rather than a stream but the flow of data is starting to speed up. Today saw a blue post by Bornakk discussing the changes to professions in 3.2.

First and foremost, the next patch will fully introduce epic gems. Unlike their TBC counterparts, however, there will be no "exclusive to raiders" this time around. Bornakk outlined four ways to obtain the new gems:



Every profession will be receiving new "perks" as well, but alchemy gets the most interesting via the new arena flasks.



Whether or not the new flasks are bind-on-pickup was no specified. To balance the changes out, "endless..." potions will no longer be usable in arenas.

Elsewhere, blacksmithing doesn't receive any changes but the extra sockets will be able to hold epic gems. Every other profession will have its old perks buff slightly. That includes stat increases to ring enchants, stat increases for "dragon's eye" gems and a buff to things like BOP inscriptions and engineering enchants.

Source: WoWRaid - thanks to Teza for the tip.