Java is dead, long live....Erlang?

Not a snowball's chance in hell. And I like Erlang.

It's not even competing against node.js - I mean, Erlang has been able to do what node.js does for years, and still does it better, yet Node.js is getting an order of magnitude more traction than Erlang got in its dreams.

I think Javascript has a shot at being the 'next big language', maybe. I'm not sure it's any good for organizing really big systems though.

Not really. Java is going to stick around for a long time, but I think it would be prudent to take stock of what realistic alternatives there are.