I think that... no. I wrote to them many times but CA ignored me.
I saw Sassanid as Arbas few months ago. After it I wrote many messages to CA. They didn't give me any message. Two days ago I saw gameplay with Sassanids without any update. They look like Arabs from Islamic era. I must write public thread about mistakes of Sassainds. They didn't give me any chance to don't make it. :/