We've heard/read from the ATC side of the incident. Excerpt from Aviation Herald.
A Delta Airlines Boeing 717-200, registration N939AT performing flight DL-1328 from Chicago Midway,IL to Atlanta,GA (USA), had been cleared to line up runway 04R and wait, the crew was advised that another aircraft was waiting for departure on the crossing runway and a second aircraft was landing on the parallel runway. The aircraft taxied into position and waited.
The CVRs may lend additional information to see if there was non essential conversation taking place which could have also contributed to the incident. Not the first incident/accident that resulted because of poor cockpit discipline during critical phases of flight.
Common flight numbers? EK325 and 9W325 DXB - MAA a red eye flight on the heals of one another. Issues... language barrier... backside of the clock flying... ATC/Flt crew RT mistakes. Letter prefixes or suffixes don't cure the problem.