Since that leaked Zuko and Katara picture from The Promise - Part 1, I thought I would post something for the Aang/Katara fans out there. I assure you, it is coming from a legitimate source. It’s an ARC/galley.
When the dude said they were continuing from when the finale left off, they meant exactly where the finale left off.
But I think the main question here is what were they about to do? …Nope, can’t think of a single joke that isn’t inappropriate.