I think once SAP releases that note mentioned in Michael's response in the post I mentioned, SAP would update the reference library with the changes with respect to SAP Fiori for SAP S/4HANA 1511 since he mentions
"Apps might be replaced, enhanced, changed, implemented using different technology or not offered in the S/4HANA context"
- this is just my guess though. Maybe some other experts know much more than me regarding this and would post their valuable inputs.
Regards,
Saurabh