Once Chrome gains enough users, they can choose to include Dartium (their Dart VM) in Chrome and choose to support that.
As a language Dart is not exciting. It doesn't tout fancy monads or functional data structures and so on, but it looks basic, simple and average. Kind of like what Java would be if it was made for the web.
So there is at least on contender out there to replace JS.
Mozilla is working on Rust. A very exciting language that actually has many fancy features, some borrowed from Erlang. Not sure if that will ever make into an in-browser language, but who knows.
As a language Dart is not exciting. It doesn't tout fancy monads or functional data structures and so on, but it looks basic, simple and average. Kind of like what Java would be if it was made for the web.
So there is at least on contender out there to replace JS.
Mozilla is working on Rust. A very exciting language that actually has many fancy features, some borrowed from Erlang. Not sure if that will ever make into an in-browser language, but who knows.