I've been hearing that Fender is rereleasing the wide range humbucker with the original CuNiFe magnets as they've supposedly found a foundry who will make that alloy again, but I can't find
Fender CuNife Wide Range Humbucker Jazzmaster Pickup Set
Fender CuNiFe Wide Range Humbucker Bridge Pickup Chrome > Pickups | Chicago Music Exchange
Fender CuNiFe Wide Range Humb. Bridge – Thomann United States