I'm curious if WSUS couldn't use a SRV record in DNS to advertise update services to clients. Similar to How LDAP, Lync, and KMS Activation servers are all identified by Service Locator records in DNS.
Rather than configure the WSUS server with a group policy object, could Windows Update Services be setup with a SRV record instead? I understand it's not possible now but just wondering if that couldn't be an option in the future. WSUS seems like a plausible service to use SRV records.