According to the twitter user @komiyaappleseed, the new iPad Pro models are expected to powered by the A14X Bionic chip, and the production of its already started. If it goes well then we will soon hear the launch.
The mass production of the A14X is based on the 5nm process and it started producing a half month ago. There is no news related to the other specification of the new iPad Pro apart from the A14X chipset. For now, we can only assume that the new product from Apple will improve the performance.
Although there is no news regarding the display quality it is assumed that the new models could feature a mini-LED screen as rumored. The previous report estimates that the 12.9-inch iPad Pro with a mini-LED screen could arrive in Q4, 2020, as Apple looks to diversify suppliers, resulting in the company obtaining massive pricing leverage while initiating fierce competition between its partners.
Earlier, Ming-Chi Kuo also stated in his notes that the next iPad Pro will ship with a mini-LED screen so combine a new display technology with the 5nm A14X Bionic, and you have a winning combo of unrivaled performance paired with refined image quality.
The A14X production has already been started
— Komiya (@komiyaappleseed) September 25, 2020