Where are the full features of Teams for the Surface Hub such as presenting your screen and sharing system audio like you can with WIndows 10 devices. If Microsoft intends to replace SfB with Teams these and more need to be available on the Surface Hub! Come on Microsoft, let's get going on the Teams app for the Surface Hub!
Once the roadmap for Surface Hub and Teams will be rolled out we will have more information. I'm afraid I can't answer your question at this point but make sure you keep an eye for official announcements.
If you do want to raise awareness for a needed feature, please do so from the Feedback Hub app as that channel reaches the correct team to make this happen