To read mails from many GnuPG, Thunderbird or OpenKeychain users and to send encrypted mails to them, support for ECDH and EdDSA is a must.
I asked the same here. I am not sure if there is an update coming for it. It’s the only downsize at the moment that makes us in the company not go for it.
Maybe someone with a Pro license can hint it at them or mail them about it?