Barra first confirmed that 4G version of MI4 is coming. Now he is confirming that 64GB version of MI4 is coming. That's why I have doubt, there will be a 64GB Mi4 model.
Further I am not excited about another 3G MI4. If 64GB is going to be 22k, then who will buy 16GB for 20k? So either 22k price is wrong or there will be a reduction in price of 16GB model, imho.