What I'm talking about is, a space in your userpage where you can submit an announcement, any kind of announcement, if it's something you're planning, the announcement can be almost about anything you want, as long as it's not inappropriate or contains any sexual content. Well the point of the announcement post is for people to see what you're planning, if you're working on a game, if you're leaving AG, anything. I do think that BBcode or HTML should be enabled there, so you could use bold, italic, link, image, and if possible - quote.
We've discussed this previously, and we're already going to be keeping the "biography" area for posting news bits. I'm not sure that we'll add an additional field to post content on your profile page or not.