There appears to be a hitch receiver cover at the end of Daerik's ride-along video.
No mention of roof rack anywhere, but seeing as the Model 3 has one, and now the Model S panoramic roof has inherited the same Model 3 roof rack system, and the Y has the same panoramic glass roof as the S, and has 75% of the same parts as the 3 .... you get the point. There's no reason it would be left out.