Word on the street is that Apple is working on a slightly tweaked, slightly improved version of its original M1 processor for a new MacBook Pro. Expectations were that Apple would unveil the new machine at the keynote for this year's WWDC, but that didn't happen. So, while we wait, the rumor mill is still working out the details.
MacBook Pro with ‘M1X’ processor hinted at in metadata for Apple’s WWDC YouTube video