A couple of months ago, Stephen Merrony, the creator of the free EWI4000s patch editor announced he was going to rewrite the thing in Java. While still not idea, Java is worlds better than whatever it was written in (QT?).
Now he is looking for people to test out a beta of it. If you have a 4000s and want to spearhead a project for it to have a better/modern editor, join the EWItool group and sign up to be a tester!