ActiveMQ now offers two flavors: "Classic" (ActiveMQ 5) and "Artemis".
Artemis (http://activemq.apache.org/components/artemis/) will eventually become ActiveMQ 6. The way for connecting/browsing queues is however different from ActiveMQ Classic (as it was originally based on HornetQ).
Artemis offers several advantages like Performance and Cloud (Active-Active Clusters). I would like to see support in MessageManager.