Until you're able to somehow transplant a T420 keyboard into a Framework, I'm staying on my ThinkPad either until it dies, or the heat death of the universe. whichever comes first ;-)
Right. Fantastic keyboards. Nothing comes close in recent laptops.
Similar situation here, with W520. My fantasy for Framework 16 is to have extended hinges and thick bezel available that would lift the screen further from the keyboard deck, and of course an upgraded keyboard available with longer travel and contoured keys (and better arrow key layout).
Are you listening, Nirav?
(Yes, I know it would make the laptop slightly thicker and heavier. But I just said I'm using a W520, and happy with it...)