Sorry for the late post.  Last week AKB announced that they will be holding their 5th Senbatsu General Election again this year on June 8.  Yes, it will be held on the same day and venue as their "AKB48 Super Festival" at Nissan Stadium.   The concert will start at 3:00 pm while the election will start at 5:30 pm.

( 5th Senbatsu General Election details )