Meiji Jingu Gaien announced that earthquake reinforcement construction at Jingu Stadium will begin in November. The work will be finalized in March 2016, with construction taking place in stages during the off-season. They also announced that the distance to right and left were found to be 97.5 meters instead of 101 meters. There was no measurement error in the distance to center (120 meters).
Additional information can be found at the official announcement link below.