There are interesting debates all around the globe about whether there is the need for a next gen EA framework. James Lapalme recently published an excellent article: Three Schools of Thought on Enterprise Architecture explaining the reasons of such debates.
In this article James identifies three schools of thoughts for EA, each with their own scope and purpose:
"Enterprise IT architecting" which addresses enterprisewide IT, and the alignment of IT with business.
"Enterprise integrating" which addresses the coherency of the enterprise as a system with IT is only one component of the enterprise.
"Enterprise Ecological Adaptation" which addresses the enterprise in its larger environment