Comment Prototypical (Score 4, Informative) 80
revamped syntax featuring classes
So they just gave up on the whole prototype system and duct taped class-based OO on top of it? That's actually kind of sad -- It was a special aspect of Javascript that set it apart from other languages, and homogenization is boring. I guess maybe today's "Javascript developers" just couldn't wrap their heads around it.
Here's a rundown of the new features if anyone else hasn't been following ES6 and is curious. A few of note are
scoped and const declaration via let and const,
lazy iterators and generators,
format/heredoc strings,
and varargs ala Lua.
Overall this looks like a good step in bringing Javascript closer to being on par with more modern languages.