In my own editor written for my own work, I've implemented language-aware line wrapping, which seems to work pretty well (it is aware of paren blocks, and wraps them together). This is only possible since the editor is semi-structured, but it feels like future. I've also begun experimenting with sub-80 column lines, actually, columns whose widths are completely configurable in real time (sometimes I want wider when focusing, sometimes I need narrower when reading and have other things on the screen).

As an example, check out the 7th example in http://research.microsoft.com/en-us/um/people/smcdirm/apx/in....