The Call to Auction podcast, which features our own Basil "Euripides" Berntsen, recently had the opportunity to send a big batch of questions about WoW's auction house, economy, and professions to developers Greg Street and He-Rim Woo. The devs gave out some great info, some highlights of which include:
There are no plans for a sweeping auction house redesign
Due to the popularity of the cooking and blacksmithing catch-up mechanisms, similar mechanisms for herbalism and mining might be on the way
The Guardian Cub experiment was just that, and it's unlikely there'll be another item like it
Splitting items off of a stack in the auction house is also unlikely going forward
It's possible that buy orders will be implemented for high-cost items like Mechano-Hogs, unlikely for stuff like flasks and enchants
The mailbox as the AH delivery system doesn't feel quite right and may eventually change
You can read the full interview on the Consortium forums.