Future of SAP Business Workflow?

Hi,

I was searching about the (HANA) roadmap for Workflow, found a lot about BRF, BRM, HRF, But not about WF and (Pi and BPM which go's to) PO.

Is there any material which give 's

1) an outlook/roadmap of WF

2) An overview about all that terms, differences, advantages, architecture. (I found a good one about BRF, BRM and HRF.
    http://scn.sap.com/people/noam.gilady/blog/2016/03/17/2-new-documents-about-sap-decision-management-vision-and-roadmap

Thank you