The ability to edit in code view and for RW to not overwrite it would be absolutely amazing.
Mind you, RMS don’t, in my opinion, have a fabulous track record of exposing code for editing. I’m taking about those silly letterbox shaped editing windows which autocomplete - whether you want them to or not.
I remember when we were being teased about RW6 and they announced ‘global’ code containers. I could have wept. Then when I seen how they had been implemented, I did. So I would not be surprised if we did get code editing capabilities in RW7 that the editing panes were ‘K’ shaped, the background could only be purple, the text navy and the unswitchoffable autocomplete were in Esperanto. Naturally the font would be Comic Sans… 
Okay… bit harsh maybe… but yes… more code editing capabilities and much, MUCH better code editing environment to work in. Its nice to imagine but can’t see it happening (too much going on at code generation time, I think).