In order for the jndi name behavior to be fully externalized in the DefaultJndiBindingPolicy, the DefaultJndiBindingPolicy method:
getJndiName(EjbDeploymentSummary summary, String iface)

needs to become:
getJndiName(EjbDeploymentSummary summary, String iface, KnownInterfaceType ifaceType)

where KnownInterfaceType is an enum of

{LocalHome, RemoteHome, BusinessLocal, BusinessRemote, Unknown}

and the JBossEnterpriseBeanMetaData.determineResolvedJndiName(String iface, DefaultJndiBindingPolicy defaultPolicy) needs
to map iface onto a KnownInterfaceType based on the metadata for the bean.