We'll create fresh WordPress site with Warcraft News installed. You have 20 minutes to test the plugin after that site we'll be deleted.
Warcraft News provides a widget to display guild or character news from the new battle.net armory. You can add as many widgets as you want, e.g. one guild and three char news widgeds. It also can optionally include the wowhead javascript and replace the blizzard item links with links to wowhead with nice tooltips.
As a next step I plan to add a widget to show your current guild level and the newest guild perk.
This addon (currently) does not show a guild roster. There are other plugins around for that.