If I am using a Kerberos Authentication certificate for domain controllers, will this cover all the functionality of the previous iterations, i.e. Domain Controller, and Domain Controller Authentication? If not what do the Domain Controller and Domain Controller Authentication certificates provide that the Kerberos Authentication one does not? Thanks

The short answer is "it depends". The longer answer can be found on this page in the section titled Kerberos Authentication TemplatePaul Adare CTO IdentIT Inc. ILM MVP