As announced at JavaOne, GlassFish Server Open Source Edition 4.1 is scheduled for 2014. ?Oracle is planning updates as needed to GlassFish Server Open Source Edition, which is commercially unsupported?. Oracle has announced the following updates to the GlassFish roadmap:

• The trunk will eventually transition to GlassFish Server Open Source Edition 5 as a Java EE 8 implementation. ?The Java EE 8 Reference Implementation will be derived from GlassFish Server Open Source Edition 5. This replicates what has been done in past Java EE and GlassFish Server releases.
• Oracle will no longer release future major releases of Oracle GlassFish Server with commercial support – specifically Oracle GlassFish Server 4.x with commercial Java EE 7 support will not be released.?Commercial Java EE 7 support will be provided from WebLogic Server.
• Oracle GlassFish Server will not be releasing a 4.x commercial version.

Oracle is committed to the future of Java EE. Java EE 7 has been released and planning for Java EE 8 has begun. GlassFish Server Open Source Edition continues to be the strategic foundation for Java EE reference implementation going forward. The primary role of GlassFish Server Open Source Edition has been, and continues to be, driving adoption of the latest release of the Java Platform, Enterprise Edition. 

For more information, read Java EE and GlassFish Server Roadmap Update blog on the The Aquarium.