The 787 family was by far my favorite aircrafts in the entire game until the A320 live cockpit came out. Then the A359. The A320 series before it had a live cockpit was exactly the same condition as the 787 cockpit is now or possibly worse! I think that the 787 cockpit does not need a full cockpit rework and it only lacks the working instruments like the screens. The aircraft is pretty much set and that’s the one of two things it lacks, it also lacks Gear tilt. But I do think that a 787 live cockpit should definitely be in 20.1 or maybe 20.2.
I have a small picture showing that the 787 only lacks the live screens and doesn’t need a full cockpit rework.