1-6-15 is the new ETA. I think msrp is about 1600. There will be 4 frame sizes, and they'll be selling it as a complete and as a frame set. Specs are up on the j&b site now as well.
Some specs:
6061 alloy custom hydroformed frame (disc only)
6061 alloy tapered steerer fork, 1.125"-1.5"
Frame clearance to 4.0", fork clearance to 4.7" tires
Sram X7 2x10 drivetrain
Origin-8 AT-PRO 801UL 80mm wide alloy rims with cutouts
Origin-8 Devist8er 26 x 4.0" Kevlar bead tires, 120tpi
Origin-8 alloy sealed-cartridge, QR hubs, 135mm/170mm
Avid BB7 brakes, 180mm rotors front and rear