Node has a lot of flaws today. But, even with those flaws, it's very useful for quick prototyping (discipline is required here since it must be a true prototype which means throwing away the code) and command line scripting (for me, it has mostly replaced python for small scripting tasks). Using it in a production service is possible, but should be limited to simple services (not too much business logic and it should be IO heavy).
But there is a lot of potential in the future. ES6 greatly improves the Javascript language and it's possible ES7 or 8 will add types. If something like TypeScript becomes standard Javascript and async/await is added, the language will become a "serious" language for many developers.
I think the Node of the future will look nothing like the Node of today. When Javascript/Node gains these features, it has the potential to become a true server side language.
I agree that JavaScript will get better with ES7, etc. that said, I am half way throw the edX Typescript class and it offers a lot of what ES6 and future releases will offer today. I also really like ClojureScript but TypeScript is an incredibly well designed language.
But there is a lot of potential in the future. ES6 greatly improves the Javascript language and it's possible ES7 or 8 will add types. If something like TypeScript becomes standard Javascript and async/await is added, the language will become a "serious" language for many developers.
I think the Node of the future will look nothing like the Node of today. When Javascript/Node gains these features, it has the potential to become a true server side language.