Apple filed three new Macs in the Eurasian Economic Database before the Apple Spring event.
The new Mac models filed in the regulatory base are listed as A2615, A2681, and A2686. The only information we have about these models is that they're all running macOS Monterey.
Apple has recently also filed new iPad and iPhone models in the Eurasian Economic Database which are believed to be the new third generation iPhone SE and the fifth generation iPad Air.
Recent rumors from Bloomberg's Mark German suggested that Apple only plans to release at least one new Mac at the Spring event. The rest are expected to be launched at WWDC 2022 which is held in June.
DigiTimes also claimed that Apple is planning to release a new M2 MacBook Pro model to replace the 13-inch MacBook Pro as well as a new Mac mini and a new iMac Pro which will replace the 27-inch iMac with the Intel chip.
The only information we have right now is that Apple is working on a newly redesigned MacBook Air, Mac mini, iMac Pro and maybe a MacBook Pro.
The Apple Spring event is rumored to be held on March 8 and it will most likely be a virtual event because of the ongoing pandemic.