With no inside knowledge, I predict the new Apple iPhone announcement on September 7th, with an actual release on the Friday of the following week, on September 16th.
How do I know this? I fully expect Apple to stay true to their pattern for releasing iPhones every September. They have consistently had an announcement on a Tuesday or Wednesday early in September, followed by the actual release on the following Friday. (I think 2015 was an anomaly with an extra week before shipments)
We humans are still the best visual pattern recognition machines on the planet. Visual patterns are also one of the best ways to communicate an insight or a finding from within the data. In this visual, I've visualized just the important dates that show a clear pattern, and simplified the design to just the relevant information. You don't need the whole calendar or all of Apple's products to communicate this one insight about iPhones.
Check out all of my visualization of all of Apple's Release Patterns!