read-config-as-features management operation

Currently we have read-feature-description management operation which returns descriptions of available provisioning features, which is the basis for Galleon feature spec generation.
I would like to add another operation that will describe the current state of the management model in terms of provisioning features (for both standalone and domain modes). The result of this operation will be used to identify user configuration changes since the last provisioned state, which will have to be done for basically any provisioning operation (such as applying patches, installing updates, etc).
I would like to have it in EAP 7.2 even if Galleon patching is postponed to a 7.3. This feature will still allow us to upgrade from 7.2 to 7.3.