How many times and for how many years do people say they're waiting for the upcoming redesign. These will not be redesigned for at least 2 years. Apple has shown its commitment to this design pattern with the new Retina MacBook Air last year, using the same crap keyboard as the MacBook and MacBook Pro.
Apple has to consider many factors before they can just change a design. In this case, they have their new suite of laptops (MacBook, MacBook Pro, MacBook Air) all with the same design pattern and the software that goes with it (e.g., touchbar, Apple Pay, T1 chip, etc.). They're locked into this for a while. In a few years, maybe... maybe, they'll redesign, but given how long the past designs have lasted, that might even be too optimistic.
This is why just last week, after being sick and tired of my 2017 MBP's crap keyboard, I bought two new 2015 MacBook Pros and upgraded them and am typing on one of them now. Much much better. While the computer is not as fast, it's decent and I now do some serious work on it. I have the force touch trackpad, fast SSD, Retina screen, etc.