They announced the Adventures in-game for Beta on Sunday. The Adventures start on Tuesday. Yeesh.
Sometimes we don't see an announcement at all for Beta, as this is a testing server where things can and will change at any time. That's the point of Beta. It's not a set schedule server like the live worlds.
Preplanning is a luxury here when we receive it, not a requirement or guarantee.
Not trying to ruffle feathers but I think we need to realize why Beta is here in the first place. No, we don't get extra items to test things here. That's not how it's ever been done, as far as I remember...and we don't get advanced notifications all of the time, nor emails for events.
This is simply a place to play what is already chosen to be tested. That's what we agree to, as per rules and many other early threads from the Forum.
If things are not done with notice in the live worlds, then it can become an issue for players. But not in good ol' Beta.