In answer to your question my guess is either Spring or Autumn next year, however now that the X-T3 is out I think we will see some firmware improvements for the X-H1 within the next four to six weeks. I consider the X-H1 to be ergonomically excellent and as my advancing years take their toll on my hand holding abilities IBIS has proved to be of greater benefit than I thought it would. Having seen the images of the X-T3 I would not have bought it anyway as it has the same operational flaw which caused me not to buy the X-T2. The positions of the Q menu button and the joystick should be reversed. On the X-T2 I found that I had to stretch my thumb to an uncomfortable angle to reach the joystick, whereas for me the joystick of the X-H1 is perfectly positioned.