It's not the cool new thing anymore, but it's definitely not going to go away. Its killer feature is that the same code can run on the client and the server. Not a big deal for most apps, but very important for some.
Also, ES6 & ES7 make callback-heavy Javascript so much more pleasant to program in. That addresses Node's main pain point.
Also, ES6 & ES7 make callback-heavy Javascript so much more pleasant to program in. That addresses Node's main pain point.