Will Steam Frame support face tracking accessories like Vive Facial Tracker or future alternatives?

Hi everyone,

I was wondering if there has been any information regarding face tracking support on the upcoming Steam Frame headset.

A few things I'm curious about:

• Will external face tracking devices be supported?
• Has Valve mentioned anything about facial expression tracking in interviews, patents, or technical documentation?
• Do current leaks suggest any face tracking capabilities?

I haven't been able to find much information on this topic, so I'm interested in hearing what people know or think.

Thanks! :)