They're making some sort of announcement, people are just letting their imaginations run wild. I don't think they're shutting the game down. They wouldn't still be posting news about version updates if that were the case. There COULD be a server merge but it seems odd that they would do a big announcement for that.
It could be just about anything: Dropping PS2 support, a new expansion, server merges, going free to play, some sort of special event, putting the game on a new platform in an effort to boost subs, whatever. Nobody knows what it's actually going to be about.
But I really don't think they'd do a live stream on youtube with a translation digest to announce something bad.