Apple has never had more products and services on offer than it does today. Simply updating them in the expected ways (like an iPhone that is faster, has a better camera, and has 5G) would certainly be enough to fill up the calendar.
But we want more than the expected releases. We know that Apple’s Worldwide Developers Conference in June will bring iOS 14 and macOS 10.16. We know September will bring a few new iPhones and a new Apple Watch. There can be no doubt that iPads and Macs will get, at minimum, minor updates to include faster processors and a few other small tweaks (like bringing the new Magic Keyboard from the 16-inch MacBook Pro to the rest of the line). Apple Arcade and Apple TV+ will continue to add content all year long.