Ethereum 5 years on....

Still PoW..... 16GB GPUs are now being used for mining and DAG bloat is still an issue.  AMD and Nividia bring the market to it's knees as they will not make 32GB GPUs open to the public, (only for their own mining farms).

Users that want to run Ethereum full nodes will need 8TB hard drives because of the size of the blockchain but, mining Burst or Maidsafe is just too profitable to make freeing up the hard drive space viable. There are  only now a small number of financial node and they are under constant ddos attack.

Some ICOs have their own ICOs and the new Jaxx  now has 5000 different coin wallet, each that generate new addresses and private keys each time you make a transaction. 3rd party key management software is needed but is constantly being hacked.

Fractional Reserve Lending comes to ETH, JP Morgan sells paper backed Ethereum derivatives and futures and local retail banks offer loans of Ethereum, (All in Ether that has not yet been mined).

This is only the beginning...