I have seen the Acitivi CDI module is ready for use...Acitivi is more friendly if u are an old JBPM 3 user.
The new JBPPM 5 is derived from Drools Flow, it is no relation with the original JBPM. This will confuse many old JBPM users. I do not know why Jboss.org keep the JBPM name , making it deprecated and discarding the project is more clear to user.
JBPM / Drools support will be taken up by the Drools team in a future release.