To pile on here
I, too, am waiting on a Model Y until a hitch is confirmed. I have a model S, and my wife is still in a Subaru.
To replace the Subaru, the Y has to have a hitch; primarily for a bike rack (3 bikes) but also for a small trailer. For those that think an aftermarket hitch is fine, there is something to consider; the Y body is aluminum, the hitch will be steel. Dissimilar metals will cause galvanic corrosion. Google hitch corrosion issues on the Model S, or search for it in this forum. A factory hitch will be sure to address this, aftermarket exposes you to risk, and not just in the event of an insurance claim as noted above.