Java deployments increasingly rely on modularity services such as OSGi. In addition, packages such as NetKernel etc would like languages to behave as services. Clojure should behave well in such environments.
Java 7 will NOT include JSR 294 (superpackages) or JSR 277 (Java Module System).
Project Jigsaw is an OpenJDK endeavor. It is "focused narrowly upon the goal of modularizing the JDK," and "will not be an official part of the Java SE 7 Platform Specification.
Clojure works fine in Glassfish 3 (a Java EE 6 application server). Dynamic loading, eval, everything works.