as far as I know we are not planning to provide support for netweaver or any other EJB2 container. If Netweaver is JEE5 container it should provide an EJB3 implementation right?
You will need to take a look at how to run CDI on Netweaver and probably you can get it working. Look at the kie-wb-distribution-wars to see how we assembly the version for tomcat: https://github.com/droolsjbpm/kie-wb-distributions/tree/master/kie-wb/kie-wb-distribution-wars
and based on that you can create a new distribution by excluding or adding new jars depending on what netweaver needs. Check in the net weaver forums or customer support to see if they support CDI.