According to latest interview with Fujifilm manager by Cameta Camera at PhotoPlus EXPO 2018. Fujiflm manager confirmed that upcoming Fujifilm GFX 100 will cost $9,995 in US.
Fujifilm GFX 100 will have 4K video recording, IBIS, and it will have a new processor, GFX 100 will known as something you take out and use, not like the current 100MP medium format cameras that are mainly designed for studio work.