I originally wanted to watch the event, but after the news about the release date and the demo broke yesterday AND I was beat up by a city trip I took yesterday, I slept in because the event was at 04:00 CET.
So, let's break the rest down bit by bit:
1. Trailer: Looks good. No, scratch that, it looks REALLY good. Nothing to add here really
2. Florence & The Machine providing a cover version of "Stand by Me" as the theme song: I'm usually opposed to these things, preferring songs that were written directly for the game, but this is a good pick from both an artist and song choice point. I don't think they could have done a lot better by writing an original piece.
3: Brotherhood: Watched the first episode today and it's... okay. A little crummy animation-wise, but it gives off a nice bit of characterization for Noctis and his crew.
4. Kingsglaive: And here is the thing that bothers me a little. I'm not opposed to a theatric feature accompanying the game, but I also hope watching the film isn't mandatory to understanding the whole game. If it's additional fluff where the people that have seen it may have an "aha moment", that's cool with me.
But overall... yeah, pretty excited. Not hyped, but sufficiently excited. May just turn out all right.