Thats not necessarily because he knows anything. Apple is pretty predictable at the macro level. In March they release significant changes and additions which

Thats not necessarily because he knows anything. Apple is pretty predictable at the macro level. In March they release significant changes and additions which do not have significant breaking impact. These are often targeting educational/business features (MDM management, classroom management, iPad usage), specifically because of the annual educational buying cycle requires the ability to evaluate in April/May to plan fall purchasing. This is also considered the last chance to deprecate functionality on the current version. In June they announce new features and changes that will have breaking impacts on existing code in their annual September major release. If Apple doesn't have new iPadOS functionality announced in a few weeks, the expectation is that the next significant functionality would be March 2022, and that still would be limited to things which do not break existing iPadOS code.