"Battlelog will receive a minor update on May 14, mainly focused on bug fixes and some redesigned elements to make navigation quicker and clearer. A lot of work has been done “under the hood” to support the future of Battlelog, but you will see a new design for the menus, Com Center, and Game Manager."
http://static.cdn.ea.com/battlelog/prod/61d099d23fe104fe673091d470c96970/en_US/blog/en/files/2013/05/BLMay14-618x241.jpg?v=1368454726.29
"There will be approximately one hour of downtime while we perform the necessary maintenance for this update, between 10-11AM CET May 14 (http://www.timeanddate.com/worldclock/fixedtime.html?msg=Battlelog+Maintenance&iso=20130514T10&p1=239&ah=1)."
source:
http://battlelog.battlefield.com/bf3/en/news/view/2925730255650044575/