The MacBook Air, lower-end 13-inch MacBook Pro, and lower-end Mac mini were announced Nov 10, 2020, so no updates this year so far for these products. And only the smaller iMac got a new release this year.Working for Apple over the years, Apple has kept the larger machines for fall holiday season. So I don't see much hardware released due to the iMac, new iPads, airtags, MacBook Air and MacBook Pro 13 and Mac mini have already been released for the year.
The 16-inch MacBook Pro had its latest upgrade about one and a half years ago. And the other models are also aging. I suppose Apple will not want its lower-end models to be faster and more powerful than its higher-end products for so long.
And, if Apple intends to ever release an M1X, whatever a beefed-up version of the M1 is called, this is the time. In September, Apple should release the iPhone 13, with the Apple A15, and the corresponding M2 should follow shortly thereafter.