We're unlikely to get an Apple 'Extreme' chip for Macs, as Apple turns its focus to AI - but an M4 Ultra seems likely for next year.

Apple this "past summer" canceled the development of a high-performance Mac chip that would have consisted of four smaller chips

A new report suggests that history may be about to repeat itself, and that a planned Extreme chip for a future Mac Pro model may also now be in doubt. In the worst case, that could be no true new Mac Pro for years to come

Apple released a new macOS Yosemite update that accidentally lists the unreleased M4 MacBook Air models. The launch must be close.

Apple left references to MacBook Air M4 13-inch and 15-inch models in the macOS Sequoia 15.2 release, suggesting they're on track for early 2025.

Seemingly, for the first time in forever, Apple will be updating every single Mac with an M4 chip, presuming rumors hold correct. There have been a number of times where this has been close, but it hasn’t happened anytime in the past decade, at least.