So if I understand correctly, starting may 15th, you can't use armory on the BCH chain anymore?
Entirely depends on the span of the new HF. If it's just a block size increase and new opcodes, Armory should still "work" provided the network magic word part is fixed.
Honestly, it would probably take me a single day to deal with this stuff assuming all they did was to increase the block size. I don't do it because I refuse to give up development time for BCH.
Got it, thank you for your hard work!

It works if you just remove some checks for the network magic, those was only added in the last update, peers for other chains will still be banned so it could only lead initial to some more wrong connections from and to your node.
See:
https://bitcointalk.org/index.php?topic=2070058.msg37065819#msg37065819For now I think its the best solution, its not the optimal solution but that way you could still use armory and also update armory without needing to edit or add own code.
You just need to make sure you remove the checks also in future updates on Bitcoin Cash. ( I assume the checks wont be updated much so should be easy to find and remove it in future versions as well ).