In the available documentation it is stated that there will be a NOLOAD part of the object module containing the debugging information. If I have understood it correctly this implies the usage of Program Objects (and PDS/E libraries).
Now, the question: Will this be the only way to implement the source support in debugging?
The reason I ask is that in our experience there has, at least historically, been some performance issues with PDS/E in a on-line IMS environment which is what we run, at least compared to "old school" pds. We also implement the Edge load library reading utility which, from what I understand does not support PDS/E.
The long and the short of it is (call me nostalgic) that if PDS/Es are the only way to go when in need of debugging then we will not be very happy I would think.
Another thing of interest, that I forgot yesterday, is the implication on Fault Analyzer. Will the above information suffice as source level support when viewing an abend?