Players can add a small engineering building to their garrison. Currently, Blizzard has referred to this as the Tinkerer’s Garage on the Blizzcon UI, however they have also referred to it as Engineering Works, so we could see The Tinkerer’s Garage actually be for something else. The Tinkerer’s Garage can be upgraded to level 3. Followers with the engineering profession can go out in the world to collect engineering mats and find new engineering recipes.
Blizzard has said they may have a mechanical auctioneer, similar to the ones in Dalaran and the Shrines, so allow an engineer access to the Auction House from the Garrison.