You can still find the article by pathing from the Star Wars Destiny page under Products, but if you look at the most recent news stories, the announcement page is not listed anymore.

Looks like it's just a glitch in the news pages. There's a while swath of articles "missing" from between July 22nd to Suggest 3rd. If you click the next page and then edit the link to go to "page 1" the toll see all the articles including the Destiny one.

There was a lot of recent news from Gencon. It just got bumped down.

Edit: Or I could be wrong and Aahzmandius_Karrde is right.