According to Mark Gurman, Apple's upcoming WWDC keynote will cover three main topics, making it one of the company's longest events. The focus will be on the introduction of several new Mac models, including a rumoured 15-inch MacBook Air, as well as Apple's mixed-reality headset and significant updates to its operating systems. While rumours suggest that the Mac Studio, 13-inch M2 MacBook Air, and 13-inch M2 MacBook Pro may receive a refresh, it remains unclear which specific Mac models will be unveiled. Gurman believes that two new Mac Studio models are in development but is unsure of their release date. While there is a possibility of an announcement regarding the Apple silicon Mac Pro, Gurman suggests that it is more likely to be revealed later this year rather than at WWDC. Due to the extensive content expected, Gurman anticipates that the keynote will exceed two hours in duration, making it one of Apple's longest ever.