User blog comment:TheDeadDragon/Can You/@comment-4992234-20120409193521/@comment-4057437-20120409231704

We think that gate, which used to be impassable, is to Cyrodiil, not Morrowind. (One can actually get up on the walkway, but there's nothing of interest there except for the view.)

We think it is possible that this is a hint about where a futute DLC may take place.