It seems we are starting to work in JSR 294 to work on modularity for the Java language. If you're interested, you can follow the discussions via an observer list. This will be the primary place where Java modularity will be discussed between the different stake holders. I think that there will be a lot of interesting arguments on this list in the next two months concerning Java and modularity.
I am looking forward to a productive EG, lets see what will come out of it!