The newly introduced A_* views are designed to create an API (public interface for customer, realized as ODATA web service based on these A_* views). These A_* view did not contain any UI annotations like the C_* views and they will be published for usage outside (remote API). Publishing an view can be done on the property page:
Reason for these additional view type is, that the UI views (C_*) are not stable, but a remote API has to be strictly compatible, for details please have a look at VDM CDS Stability Contracts