Yup thats basically what most AR glasses are capable of (or in the case of the linked aria glasses, research device that does have all the sensors.) but you do

Yup thats basically what most AR glasses are capable of (or in the case of the linked aria glasses, research device that does have all the sensors.) but you don't need eye tracking all the time, as most you can latch on to the location of the speaker without looking at them continuously. The possibilities are rather good, but it needs someone willing to fund the research