I'm gonna be perfectly honest and say that there wasn't much mentioned that wasn't already mentioned in the previous one.
They simply displayed the visuals of the 5 forms (male only, being Njoror, and he sounded like he wasn't sure if the female ones existed yet). Other than that, he showed us the bosses, all of which are level 70, in the Osiris dungeon.
He also gave us a mild explanation of the Master Class, which wasn't much new information (again, mostly stuff covered in the old stream, or mentioned since on the forums).
He also showed us some details of the events. Apparently both titles available (one seems to be a prefix title, and one seems to be a suffix title) seem to be easier to get through the event this time (in comparison to other event titles in the past), but I'd assume you'd have to sacrifice getting the costumes to get the better title. They're the Gift Box costumes, though, so it's not a major loss. To get the better title, you need basically 1,000 Snow Flakes. 5 of them converts to another item, and 200 of that item converts into the title.
They had a lot of issues getting the stream going, so it was cut short (by half).
They fixed the bird pink texture in the character screen, though.
Heimdallr made it sound like it might be possible to see some of these Advent of Valkyrie content as early as the 18th of December. However, he also HEAVILY EMPHASIZED on the matter that fixing all of the problems, bugs, issues, and glitches will take priority over actually implementing the content. The Advent of Valkyrie Patch is supposedly the largest Patch since the release of the game, so it's clear that they're going to make sure that we don't have a repeat of what happened with WoE. Basically, like all things WP and IRO2: everything is tentative until implementation.
Heimdallr also pointed out that the difference between a level 50 Master Level will be vast, since someone asked.
There's also a new sleigh mount that Njoror demonstrated, but this can be seen on the event page (along with some costumes and event details) here:
Events: http://playragnarok2...ews/article/165
Kafra Shop Update: http://playragnarok2...ews/article/167
Dancing Event (haven't seen this one mentioned on the forums): http://playragnarok2...ews/article/166
I would recommend watching the video, if you have 30 minutes of free time. If nothing else, it was amusing to watch Njoror derp around with even more power than usual.
Edited by SoraOfKHK, 15 December 2013 - 01:54 AM.