What major or minor plot points do you wish to see followed up on? [Spoilers]

[Enkidoh]

Also, where was the ocean harbour? Is that the big gate in the north?

I think that's indeed what he means, however what he said was also incorrect, it's not a harbour at all but just a lake linked by a canal that has a lock/watergate connected to it for some reason, and that whole thing did not even exist in that location 'pre-Calamity' in 1.0 (Twinpools/Ashpool were just that, pools ; and the Dreaming Dragon in 1.0 was just an island in the distance and not the frozen decomposing draconic corpse it is now), so I wouldn't read too much into it.