And while I agree that the most popular language will be something brand new, it's based more on non-public information I've seen.
I'm not sure I agree with your "superiority theory". Languages become popular because of the core problem they're solving. C++ was popular when Windows came out, Java when the web took off. The next big language will be able to handle multi-threading easily, so that when we hit 64 cores, it won't be a waste.