https://www.theverge.com/2019/8/29/20808423/apple-iphone-event-2019-date-time-rumors-macbook-pro-services

https://iphone.appleinsider.com/articles/19/08/29/apples-by-innovation-only-iphone-event-is-on-sept-10

The iPhone 11 is likely going to be announced at Apple's "By Innovation Only" event on September 10th at 10AM PST.