I think it will be far more than that by 2019
Me too, though this is of course wishful thinking on my part. I think the remittance market alone could be used by that figure but whether it will or not we'll just have to wait and see.
You know, all this is wild speculation. There is no proven method to predict BTC's growth.
But you know how much people like to speculate. Sometimes that's all their is to do to keep yourself occupied when btc activity is slow. Nice to think/dream about, though.