What I would like to see is a way to separate the the syntax of my code from the semantics of my code. Ideally, my code editor should be able to take the same piece of code and display it in a few different styles of syntax.

Then I could write my code in whatever syntax I want, and someone else could flip a switch and change it into their preferred style of syntax.

I am honestly kind of puzzled as to why the concept of MVC disappears as soon as we start writing coding tools. It seems that for any reasonable syntax that you can write a parser for; it should also be possible to write an emitter from an 'intermediate' syntax tree.