We are quickly moving into a, “Wait for it” kind of world. Whether it is a fail video or a car door unlocking experience. Technology appears to be introducing the new idea and then design tries to blend it with our memories of something similar (i.e. metaphor). Latency is indeed a pressing issue in UXD.
Machine learning is an area to investigate further for the future. A door handle that understands if you are carrying a full load of groceries or need to escape from a guy following you in the night seems to be the next step.
Why can’t the door unlock and pop open slightly ajar as you approach it? Seems to solve quite a few issues of both near term and long term UX.