^ But if Ernst & Young's lease is expiring soon at Sears Tower, and they want to keep up with PwC and Deloitte (1 N Wacker and 111 S Wacker) so they can recruit good young people etc., there is a good chance they really are looking at a new tower.
Current render on John Buck's website:
http://www.tjbc.com/Portals/0/img/buildings/222westrandolph.jpg