I feel vaguely like Yoda did when order 66 was given out.
Here are my predictions….
By enabling the same language on server and client… there will be a dismal increase in connasence in web apps.
View Source will become more and more tragically useless, destroying a large part of what built the WWW in the first place.
The promise of the same language on client and server is going to become uncomfortably untrue when you start depending on libraries…
Microsoft is salivating. I bet they will be one of the first off the block with a C# to webasm that runs in all browsers….. and then immediately will start screwing with the standard implementation in IE so they have an edge.