our mind on this : JBoss Portal does not aim to be a full fledged CMS because it is not the primary goal of the portal. In addition we are years behind the big fat real CMS.
However we want to provide a basic CMS (it is relative of course) yet sufficient for the needs of most of deployments.
Considering the development, we are improving the current CMS structure to provide a more robust and leveraging JCR spec. The functionnalities we want to add are a better support of internationalization (i.e a document can exist in several languages).
Simple workflow is a basic CMS feature and would be implemented after 2.2, probably 2.4 with jBPM.
The target date for 2.2 is november, 2.4 should is targetted for Q1/06 probably at the end of the quarter.