FWs does limited editions. So the 1942 jeans and jacket from April '24 won't be produced again.
The upcoming pair is quite close, so people who have missed out, can have a chance. And they're still different from the previous one, like has been said apparently mostly the new denim and the suspender buttons for the jeans and also the upcoming ones have the reverse yoke (top over bottom), which the 1942 one did not have.
And the 1942 one had the black buckle, I think, while the 1941 seems to have the same or similar one to the 1937 one.
The 1942 was standard yoke (bottom over top) and standard left over right.
The upcoming 1941 will have the reverse yoke (top over bottom) and standard left over right.
And the 1937 XXC had standard yoke (bottom over top) and right over left.
Quite confusing I have had to check a few times, which was which.