Fujifilm has updated their X Mount Lens Roadmap as of February 2020.
There are now a total of 31 FUJINON X Mount mirrorless lenses ranging in focal length from 8mm (12mm equiv.) to 200mm (300mm equiv.). Of these, there are 4 XC lenses, 2 MK (Cine) lenses, and the rest are XF lenses. The newest lens is the XC35mm F2. There is a XF50mm F1.0 R WR expected sometime this year, bringing the total to 32 lenses.