OK, maybe I will speculate
I think we need to let go of the FA series just like we let go of the K, M, A and F series. It is the time of the DFA.
So I have no problem with new "wide diameter" primes being released (I would bet on 24/1.4, 35/1.4, 50/1.2 and 85/1.4). They would be fast, weather sealed, silent focussing and optimised for digital sensors. Those who maintain their nostalgia for past glories can trade in the second-hand marketplace for the FA limiteds just as they still do for A* lenses and other legacy legends.
That's progress for ya!