The device passes under the code number J327. Presumably, the new product will be the successor to the Pro Display XDR monitor, which was shown in July 2019. Interestingly, the monitor will boast an integrated A13 Bionic processor, which, incidentally, is found in the second generation iPhone 11 and iPhone SE. In addition, the new product is also credited with the presence of the neural engine Neural Engine. Such a bundle will help the monitor work better with graphics and reduce the load on the computer connected to it.
By the way, rumor has it that Apple is still working on an inexpensive external monitor that will be sold along with the Pro Display XDR. When both new items will be presented, there is no information yet.