The next-generation Apple iPad Pro is set to feature an OLED display for the first time in the history of the iPad, which is expected to surpass all OLED panels on the tablet market by far, as it is the world's first "stacked" LTPO OLED panel and thus able to reach significantly higher brightness levels.https://www.notebookcheck.net/Rumor-Apple-iPad-Pro-with-the-brightest-LTPO-OLED-display-of-all-tablets-goes-into-production.793765.0.html
Expect another $100-200 price increase. Simply not needed. Mini-led would be preferable.