Personally, I have no problems with the current GUI. I'm visually impaired and so far it seems very accessible to my screen reading software in terms of keyboard navigation. I hope this doesn't change in the future. The only request I have is for the addition of some keyboard shortcuts. There's currently no way of adding files and folders to a compilation with the built-in explorer using only the keyboard. Would it be possible to introduce a hotkey that would add files/folders which are currently selected in the explorer to the compilation? Preferably the shortcut would work in either the explorer's treeview or listview. I can certainly think of some other keyboard shortcuts which would be useful, (like perhaps F2 in the compilation for renaming folders) but I think a method for adding items to the compilation using the keyboard is most essential for accessibility.
Thanks and keep up the good work. This is a great piece of software.