For all the content that isn't there now, it looks there will be plenty soon. We counted eleven blacked-out character portraits, for example, and there are currently inactive links to story introductions and a download page. You can look at the pretty, well-designed web page, at the very least, and bookmark it for later.
The Dengeki article that reported this also included three new screens of the dungeon-crawler, each of which depicts a different gameplay aspect-- story, mapmaking, and battle. They look just like the last Etrian, but we expected as much.