1. A content delivery system comprising: a control unit including a processor configured to: identify a registration type representing a section of a venue for calibrating a current location of a device within the registration type, determine an information source providing subject information based on the registration type for filtering an audience type of an audience member representing the information source located in the registration type, generate an overlay content based on the registration type of the information source different from the registration type of the current location by updating the information source based on a status change of a subject of interest and a change in a context for obtaining the subject information for providing a perspective of a situation different from the situation viewed from the current location and the perspective of the subject of interest different from viewed prior to the status change and the change in the context, and a communication unit including a microelectronic, coupled to the control unit, configured to transmit the overlay content for displaying the overlay content on the device.