Surface Pro 6 is now supported on Microsoft Teams Rooms devices. Check out specific SKU support by processor type, RAM, and storage size here.
One additional note - we're now in the process of updating references to "Skype Room Systems v2" with the new "Microsoft Teams Rooms" product name on docs.microsoft.com. Expect to see the change in the coming weeks.
I've also moved my MTR blog postings to the Teams page starting with this posting.