I received some additional information on the upcoming Fuji X-M1 camera: it will have focus peaking function but it will not have digital split image focusing.
Additionally, digicame-info published the full specifications of the soon to be announced Fujifilm products:
Fuji X-M1 specifications
The sensor 16.3 million pixels X-Trans APS-C CMOS active
ISO range: 200-6400 (100, 12800, 25600 also available)
Shutter speed: 1/4000 to 30 seconds (160 seconds in the S / M mode, sync 1/180 sec)