Anonymous coins are the new big trend. As it was in early crypto years, many people were drawn in by the chance to do their transactions without fear of being observed by institutions. Later on it proved that BTC(for example) transactions are practically not anonymous and agencies can get to you and prove your involvement in a transaction provided they invest enough time, effort and resources into this, like they did I think with Silk Road's owner a few years back.

The new anon coin trend is barely in its beginning, lots more projects will appear that concentrate on anonymity and out of them a few will emerge that will establish themselves for the long run.