Apple usually holds events in early spring where the company unveils new products, so a new MacBook being announced in a few months makes sense. One theory is that this refers to a 13-inch MacBook Pro that comes with the same Magic Keyboard with scissor switches that got a redesign past year and was included with the release of a 16-inch MacBook Pro.
San Francisco: Apple has received regulatory approval for its next MacBook laptop, possibly a 13-inch device, with redesigned Magic Keyboard and scissor switches.
As 9 to 5 Mac spotted, Apple has filed a number of fresh products with the EEC (Eurasian Economic Commission) - which typically happens not long before new hardware is released - and one of those is "model A2289", which is specified as a portable personal computer with macOS Catalina. And while it looked to be an nearly identical copy of the 15-inch model, updates included a brand new Magic Keyboard meant to offer a permanent fix to the sticky keys problem that affected various MacBook, Air, and Pro models released in recent years.
This is the keyboard which drops the Butterfly switches, which were infamously the cause of many problems, and brings in Scissor switches (as seen in Apple's Magic Keyboard).
"It's called a butterfly mechanism because the components underneath the key resembles a butterfly's wings, with a hinge in the centre rather than overlapping like a pair of scissors". Only the headline has been changed.