JMOD file format is not listed as an open issue?

[Mike Hearn]

JEP 261 "The module system" states that the final format of JMOD files is
an open issue. However it is not listed as an open issue here:

   http://openjdk.java.net/projects/jigsaw/spec/issues/

The format of JMOD files doesn't seem to be a part of the spec. Is this
going to be resolved before launch? I understand that jimage files are
HotSpot proprietary but my understanding was that JMODs were going to be a
kind of upgrade to the JAR format and that'd be public.