Personally, I would rather they just rip the band-aid off and remove flight all together going forward. The fact that we went a year into BFA without it and the world didn’t come to an end shows that we really don’t need it. Don’t get me wrong, it is a great convenience item but the game was better off without it (in my opinion).
That said, I wouldn’t object to them changing the way pathfinder works either. We really shouldn’t have had to wait a year for the BFA version. We should have been able to fly in the core BFA zones with pathfinder 1 a couple months after released. With pathfinder 2 opening up flight in the 2 new zones.