What is the DoD Directive 8140?
DoD 8140, Cyberspace workforce will supersede DoD 8570 as the guide for selecting the personnel with the correct certifications, skills and experience.

Where is the DoDD 8140.01, Cyberworkforce going?
8140 manual may mirror an ongoing initiative that has a lot more categories. Those high level categories would be under a National Initiative for Cybersecurity Education (NICE) framework:

Security Provision, Maintain and Operate, Protect & Defend, Analyze, operate & collect, Oversight & Development and Investigate.

These categories are broken down further into a sum total of 31 tasks. It was supposed to be released in 2013, but there is actually no telling when it will come out.

http://diarmfs.com
niccs.us-cert.gov