video board was installed in right field, respectively. Renovation plans were halted in 2011 when repairing the damage caused by the 2011 Tōhoku earthquake took precedent. Following the 2012 season, Rakuten continued its redevelopment of Miyagi Stadium and again focused on implementing their "ball park concept". The box seats along the first base side were expanded farther toward the outfield and included a party deck. The bigger change, however, came with the addition of the new E-Wing seating sections. These two sections were built in right- and left-center fields protruding from the existing outfield seating. The construction of these seats changed the shape of the outfield and decreased the distances to the wall; both distances down the first and third baselines were reduced from , and middle left and right fields were shortened from , effectively creating a "lucky zone", the term used to describe moving an outfield wall to make hitting home runs easier. Along with the E-Wings, a new outfield wall was also constructed. This wall was shorter than the previous () and featured padding for outfielder players. Rakuten removed much of the temporary seating added throughout the year during the Eagles' championship in 2013 and replaced it with a large, permanent seating area along the third base line. In addition to traditional seating, the section also featured seats with tables, box seats, party decks, and standing seats. It was completed in August 2014, with a LED screen added to the top the following September. The following offseason, a new entrance gate and standalone Eagles' merchandise store were built in the plaza in front of the stadium and a geodesic dome was erected on its third base side. A restaurant for season ticket holders was also constructed in the ballpark. The last large-scale renovation of Miyagi Stadium occurred during the 2015–16 offseason. The ¥3 billion project converted the field from artificial turf back to natural grass, updated the scoreboard to a full LED screen, redeveloped the center-left stands into an amusement park, and made minor alterations to several seating sections. Rakuten first began testing the feasibility of maintaining a natural turf field in Sendai's cold climate by collecting data on grass installed on a practice area next to the stadium in 2014. During the last major seating alteration following the 2018 season, a four-story tower was constructed and the first base side infield seats were upgraded. The new