Earlier quoted context omitted.
Isn't it also just as much about Python is having it's day, granted a day long in the waiting but many langs go through this (Ruby, PHP) and then it tapers off and the next language has it's day. Probably Go will be the next hotness in 5 years.
Maybe, I love Go but I'm not sure it's the next "hot" thing, all the recent "hot" languages have been scripting languages PHP, Ruby, Python, JS ... I'd say JS and Python are currently jockeying for that position.
All the languages you list are over 20 years old. I think the popularity of Go and Rust show that statically-typed languages are having a resurgence.
As a long-time C programmer (with significant bits of bash and perl on the side), I've really enjoyed learning Go. But the responsiveness to developing new language features has been _sooo sloooow_. We'll have to see in 10 years if this turns out to have been a wise decision or not.