It hasn't really been carry trading season since the financial crisis of 2008. Rates plunged then, and have stayed low around the world. That's part of what's fueling the big runups in equities and other assets.
That being said, I think we're looking at inflationary pressures starting to pick up. We haven't seen bad inflation since the 70's, but that may be about to change. If so, rates will start to head up again, and there should be plenty of high yielding opportunities in much safer economies. Before the yield crash, NZD/JPY used to be a nice vehicle, for example.
If you really like those big yield numbers, check out Venezuela, lol! Rate is over 58%. But you'll always find those high rates in very rough neighborhoods in the world - often around wars. Right now there are high rates all over the Mid-east and Iran, Zimbabwe in Africa, troubled states in Central America like Venezuela and Argentina, etc. With big rewards comes big risks.