this sounds like a great project, I hadn't come across Bankera before but definitely worth looking into. And to get Steem on their exchange would be amazing! Im really interested to see how the development of "banking" crypto flushes out because I think it has a multitude of applications beyond exchanges. In my mind a global crypto bank would be the most ambitious to make, but I do think some day it will happen - meaning it would operate for all currencies around the world, between fiat, crypto, and maybe even asset leverage. We may never see it to the full extent, but I think a bank that is able to do this would eventually support banking for a full global economies. Either that or eventually fiat dies out in 20 years and we're all using digital crypto payments of various natures via SMS, apps and other contactless means ;)