After earning a promotion to the Springfield Cardinals of the Class AA Texas League in 2012, Wong batted .287 with 52 RBIs and 21 stolen bases. He was selected for the 2012 All-Star Futures Game. Wong finished the year playing in the Arizona Fall League (AFL), where he batted .324 with 12 RBIs and five stolen bases. He was selected for the AFL "Top Prospect" team for second base after the season concluded.