Prosser based his guesses on these yes. IIRC though they were not real blueprints. They were effectively sketches, similar to what Apple uses for patent applications.While not to the level of the 2021 MacBook Pro blueprints, there have been leaked schematics of a thinner Mac mini with a different port configuration, two intake vents on the bottom and with the MagSafe connector from the 24" iMac and that is what is being used as the basis for these renders.