Hi Mauricio,
The pega documentation says that the process is not BPMN 2 standard, but something close to that( not sure what?). But as i know IBM BPM(Lombardi) is BPMN 2 compatible. Now my question is what is the configuration that you are explaining, are there any documentation available on this, also i am not sure what will happen to all the Human Service and System services attached to the process.
Any help will be appreciated.