No.
Well....maybe. Some day. Depends on your definition of "die". I wouldn't be surprised if in 10 years most complex apps are written in another language like Reason/Elm/somethingelseyettobecreated. But while we've been mostly forced to use JavaScript this whole time, it's popularity isn't just because of monopoly. Through its faults it has a lot of traits that are perfect for many websites, particularly for people just getting started. I predict JavaScript will live for at least my lifetime, but the distinction between web and native will blur completely.