I dont know anything about mastercard but admin on telegram group told me that we can expect cards after mainnet relase,so that means in Q1 2019.They mentioned Intercash as one of the solutions they plan to use for now.
Here is intercash link https://www.intercash.com/
Hm i never heared about intercash,i gotta check it out,but at the moment, anything is good and better than that fiasco with Monaco,as people are still waiting for that card.
Well for a project like Agate it makes sense to go for a card, otherwise the benefits of the iFiat Ecosystem wouldn't be fully utilized.