There's a couple of languages I follow their roadmap and I find exciting, including Java and C#. I don't feel there's proper justification of writing backend services in something like python or ruby anymore, for example.
Yeah, I also try to follow what's new. But it's more like "Ok, that's good I guess." Rather than "Cool! Looking forward to applying this in my next project!"
Never was really, at least if performance matters.
I found C# exciting when it was new and adding features that were important to me, but now it feels like it has become bogged down with chunks just abandoned on the alter of backwards compatibility (Expression, anyone?) and adding features I couldn’t care less about (null safe code, pattern matching, etc).