The flagship GFX 100 medium format camera will feature a 100 megapixel sensor and IBIS. It will record 10 bit 4K up to 30p and the price of the new shooter will be around $10,000. Expect the availability and official announcement in the first quarter of 2019.
Cinema5D interviewed a Fujiflm manager about the Fujifilm GFX 100S concept. Fuji manager told the Cinema5D that the camera will record in 4K, 10bit, 4:2:0 internally with the ability to capture video in 4K, 10bit, 4:2:2 externally via HDMI. This will be the first time Fuji will introduce IBIS to their medium format cameras.