I know Vim has NerdTree and the equivalent Cmd-T plugin - I have tried them and they don't work out quite the same.
There are still lots of things I like about Vim that aren't there in Sublime but it's all about compromises. I still use Vim for editing single files but use Sublime for any project that requires multiple files to be opened and edited.
If I want to use vim, I can use vim. Heck there are many things these days that will give you the same GUI candy what GUI based text editors give.
Glossy text editors come and go every 2-3 years, Editors like Emacs and vim stay.
The next question then must be: when do we start writing the next generation of tools? Now, or should we wait?
Firstly you are not going to live for the coming 100 years. So lets not worry about impossible scenarios.
Secondly next generation tools for the next hundred years need to be designed such.
36 years × 39 = 1482 more years of Vi.
Classical pianists don't. Every other kind of professional pianist does it all the time.
Except if you don't consider someone like Keith Jarrett, Herby Hancock or Chick Corea a "professinal pianist".
As for "not supporting all the vim keystrokes", ever heard of the 80/20 rule?