A future MacBook Pro may do away with mechanical keyboard mechanisms entirely to eliminate issues with debris, by using a force-sensitive surface on a flexible area of the MacBook’s casing to mimic the pressing of keys.
Over the years, Apple has received complaints about its MacBook Pro keyboards, especially for the butterfly mechanism, with key death being an issue among users. The ability for the mechanism to be jammed up with debris led to Apple introducing a membrane in 2018, but even that inclusion wasn’t enough for it to rethink its key mechanism usage.
The main issue is that it is practically impossible for Apple to create a keyboard that can be protected from the elements using conventional keyboard design techniques. Even if Apple internalizes most of the mechanism, there still has to be a protrusion to allow the externally-facing key to actuate, with the required holes being