As far as I know jBPM5 doesn't have any kind of deployment package yet. the jBPM5 project promote that you can upload your business processes and models to Guvnor (a Knolwedge Repository) and your applications can go there to get the process definitions and model to use. I personally believe that this approach helps to centralize all the business knowledge in one place and helps you to govern all your business assets in the same way.
Cheers