The following is a roadmap proposal that hasn't been approved or accepted by the Struts 2 project.

Struts 2.1

• New plugins: REST, Dojo, DWR, Portlet, JUnit, and TestNG
• Internal API cleanups

Struts 2.2

• Finalize zero configuration strategy with new Conventions plugin
  • Move REST Plugin over to use Conventions plugin, if necessary
  • Ensure full legacy support
• Scope consolidation
• OSGi Plugin?
• Public API
• Add support for multiple UnknownHandler(s)

Struts 2.5

• 2.5 and not 2.3 to reflect important changes in xwork
  • Guice 1.0
  • Reworked localization
• JSR 303 (Bean Validation) support
• Built-in command line tool like Grails