Zcash will be next ETH, so if you buy it now, you can sale it later with good profit. Many people think that Zcash will be popular. May be it is privacy technology, which make it so popular already, before the launch. 
There's no way zcash could ever go global because of it's connections with the Israeli government.
It might make some noise in America and parts of Western Europe, but everywhere else in the world will reject it.
Does any where else even matter
