The new Canon EOS R5 is now listed at B&H/ Adorama, but according to the latest rumors from CameraRumors, the production for Canon EOS R5 is delayed due to supply chain issues from the Coronavirus. It is expected to start shipping in October 2020.
Unfortunately, the shipping date of Fujifilm X-T4 (Amazon/ B&H/ Adorama) in Russia is also delayed from April to May, 2020 due to the coronavirus. So far, Fujifilm X-T4 is still listed as “shipping will begin Thu Apr 30” in USA. But even if the Fujifilm X-T4 starts shipping in April, it will be available only in very limited numbers, so you may pre-order Fujifilm X-T4 at Amazon/ B&H/ Adorama right now.