That would be really a huge surprise: 5 months after the X-T1 announcement Fuji will deliver a “hardware upgraded” X-T1b!
This is quite a unique thing and hopefully this will not upset the brand new X-T1 owners! I would really like to know why Fuji did hurry to deliver such an update camera. Fujirumors reports that little is known about the new features but one of them could be a higher resolution EVF: