The next 12.9 inch pro ipad will be slightly more often than the current model, probably due to the inclusion of the mini-LED display. The 12.9 inch model will measure 280.65 mm long, 215 mm wide and will have a thickness of 6.4 mm thick. The change of thickness could be due to the inclusion of the mini-LED display, a new technology that will arrive only on the 12.9 inch model.
As for the 11-inch iPad pro, the size will remain substantially the same, including the thickness. Will measure 247.6 mm x 178,5 mm x 5.9 mm. Apart from these small design changes and the introduction of a 12.9 inch mini-LED display, the new models could be equipped with thunderbolt connectivity and a14x chip faster.
Apple will announce the new iPad Pro models at today’s “Spring Loaded” event.