A patent has been spotted for a Fujinon XF 18-200mm F3.5-6.5. Now, I remember that a patent about a Fujinon18-200mm F3.5-6.5 has been spotted also back in 2014, and the optical design is similar indeed.

From the patent details we see that this lens has a higher optical magnification than the XF16-80mm F4 and the XF18-135mm f/3.5-5.6 and covers the angle of view equivalent to “25.5-300mm” in full size. The patent does not mention OIS.

But…