Seems like this is going to be a very short event. What's the point? Unless Apple does introduce more, like an M3 iPad Pro, magic accessories with usb-c, etc. But even then, I can't see this event running for more than 30-40 minutes. If you take out all the pointless fly-through transitions between presenters and it'll be down to 15-20 minutes.
And if you take out their self congratulatory back patting about their environmentalism, about 10 minutes.