I can't help, but feel this was a lead up to a very interesting WWDC.
This allows them to talk about the software after the hardware is in the hands of developers to build for it over the summer with iPad OS 15.
They are doing 16GB of RAM on 1TB+ and that to me feels like they are planning something macOS like that allows pros to be able to unlock that extra hardware.
Precisely. I think lots of people on this thread are right on the money. Either iPadOS is about to take a gigantic leap forward or iPads will run MacOS. There is no other reason given the current state of iOS development to put 16GB of RAM and up to 2TB of SSD in iPads. iPad hardware now matches MacBook Air and MacBook Pro hardware.
If you look at the pricing, it also suggests that a MacOS-like iPad experience is coming. The biggest issue with bringing MacOS to an iPad was not the technical aspect. It was the fact that if MacOS were available on iPad, a sizable percentage would just buy an iPad. Prior to today, iPad prices were just too low. It would cut into Apple's margins too much. Today's new iPad Pro pricing dictates that if you want the MacOS experience on an iPad, you'll have to fork over a pretty penny for it. So no longer will Apple be afraid of iPad sales cannibalizing Mac sales.