I have read about a plug-in for JIRA, called Easy Agile Roadmaps. We got our licences from you, how can we know more about this tool?
I kind of want to split epics into themes and be able to see the estimated time it will take to complete them.
As a matter of fact, we got this video interview by Martin Seibert with Nicholas Muldoon from Arijea about their products and a demonstration of Easy Agile Roadmaps for JIRA which should be of great interest to you.
And the link to the Atlassian Marketplace. We can give you a non-binding quote to add it to your portfolio of licences.