I was reading about new languages for me to learn and I find very good comments about D, like it's the new C or what C++ should have been. Knowing that many people say wonders about the language, I'm wondering how much time usually takes to a language to become popular. This is, having libraries ported or written natively for this language and being used in serious software development.

I have read about the history of Java, and Python to figure it out, but may be they are too high level complexity to say their development could take the same time as will take for D.