Writeback for Cloud-Managed Remote Mailboxes: Now in Public Preview

Thanks kumarmukesh​.  Will support for distribution lists, contacts, and mail users ever be added?  I know object level SOA migration is available for these objects but I don't necessarily want to migrate the object's SOA to the cloud, just the Exchange attributes.  If support for these objects won't be added, it does nothing for the ability to remove our last Exchange server, since I will still need it to manage those objects while retaining their SOA to the on premise directory.