I have a tricross 2013 on order, supposed to be here mid-july (keeping fingers crossed)
Page in catalog says it will have BB7 mechanical disc brakes, and SRAM Apex Front and rear Derailleur, Shimano Tiagra cassette and FSA Gossamer crankset. Wheels are Axis CXD. Price, $1950.-
I tested a 2012 Tricross sport with disc brakes at my LBS (this is strange because the Specialized web site doesn't even show discs as an option for that bike) and thought that rode really nice... effortless actually. Lot less money that the COMP, but not the component set that I would settle for at this point. I expect this 2013 Tricross to be a pretty sweet bike indeed.

SullDC - Highroad in Doylestown, PA has a 56cm 2012 Tricross Comp on the floor.

Love the bike, the 2013 has BB7 disc brakes but an aluminum fork. I may opt in for the Crux but think it may still have BB5 discs but a carbon fork