Rumors of a slim iPhone Air, a foldable iPhone, and a special 20th Anniversary device show how the lineup could be revamped by the end of 2027.

Apple’s next slew of iPhones will go on sale in September, almost certainly less than four weeks from now. Before then, it’s probably under three weeks before all is revealed at the next keynote. And the soonest development could be as soon as Tuesday, Aug. 26. Here’s your complete guide to what’s coming, including times to the minute.

Mark Gurman has been evangelizing Apple’s unshared plans to introduce a curved glass iPhone for months. He says this will make its debut in 2027, marking the device’s twentieth anniversary. It will boast curved glass edges all around, and feel like a living sheet of glass too, thanks to Apple’s Liquid Glass OS, which arrives next month.