There actually is a guy building WE horns in France using the oak from the same forest in the US where WE sourced theirs.
https://resistormag.com/features/western-electric-horn-systems-time-travel-with-tim-gurney/
I visited Tim in 2015 or so. For any vintage speakers there are different people making replicas. If someone is interested best is to visit them and listen to the model and see if you like them. There is also one at Silvercore's (a 16a) made by the South Korean guy, but Silvercore uses various drivers including WE, GIP, his own, and then there is are a couple of others in Germany with Line Magnetic drivers