Before WWDC, rumors largely driven by leaker Jon Prosser suggested that Apple would announce redesigned 14-inch and 16-inch MacBook Pros during the conference. Those rumors, however, did not come to fruition. Interestingly, though, Apple lists "m1x MacBook Pro" as a tag for the WWDC keynote uploaded on YouTube.
The tag, first spotted by Apple YouTuber Max Balzer on Twitter, is among other tags Apple has added to the video, including iOS 15, M1X, iOS, developers conference, and more. Apple released the M1 Apple silicon chip in November, and speculation has suggested that the next chip, expected in the redesigned MacBook Pros, would be called "m1x."