If you want APL to be reborn make a version that supports GPU acceleration. That just might give it momentum enough to be used, a language that runs with the native speed of the GPU and that is easy to compose without having to fiddle with the details could be a winner.
As for the word 'deserve': computer languages don't really deserve anything, they get adopted, or not. APL is a beautiful language and it gives me immense pleasure when I 'get' a program but the barrier between 'the problem' and 'the solution' hinges on libraries, eco systems and communities. I suspect that APL's window of opportunity has passed and even if Clojure became 'a modern lisp' and Elixir became 'a modern Erlang' I don't really see a big driver behind 'A modern APL'. What would it do that can't be done in other ways?
There is this:
https://github.com/Co-dfns/Co-dfns
But it's not quite it.
As for the word 'deserve': computer languages don't really deserve anything, they get adopted, or not. APL is a beautiful language and it gives me immense pleasure when I 'get' a program but the barrier between 'the problem' and 'the solution' hinges on libraries, eco systems and communities. I suspect that APL's window of opportunity has passed and even if Clojure became 'a modern lisp' and Elixir became 'a modern Erlang' I don't really see a big driver behind 'A modern APL'. What would it do that can't be done in other ways?