According to a new paywalled report from Digitimes, and then reported by MacRumours, Apple has multiple events scheduled for... September.

Unlike last year, where Apple held three online pre-recorded events announcing new products, today’s Digitimes report claims that Apple will instead “host a series of product launch conferences in September,” enabling multiple product releases into the same month.
Over the fall we're expecting to see the following products announced:
iPhone 13 lineup
Apple Watch Series 7
AirPods 3
iPad mini 6
iPad 9
MacBook Pro
The new report from Digitimes is surprising, as if Apple were going to release these products, surely they would just do it in one big event?
Arranging a huge event would be far easier for Apple and the press - having multiple smaller events could be a total nightmare for Apple.
While it is unlikely for multiple events to be held across September, it is more likely for one large (possibly in-person) event to be held, or an iPhone with Apple Watch event with a preceding event Launching the new MacBooks and iPads.