iPad Pro longevity
How long IPad Pro 2018 would last? iPad Pro 11 size or how long iPad Pro 2018 would be supported?
Apple supports new iOS/iPadOS devices for approx. 6 years.
Third party app developers will support new devices for approx. 7-8 years
A 2018 iPad Pro has approx. 4 more years of full support from Apple and approx. 6 more years from third party app developers.