The two women met in 2013 with Ortiz taking the WBA title from Tada with a very hard fought and highly debatable split decision. Since then Ortiz has fought 3 times and defended the belt twice, including a clear decision against South Korean Hye-Soo Park.
As for Tada she has been somewhat inactive with just a single fight, an 8th round TKO over Thailand's Rathsada Sor Worasin.
Although not yet listed on boxrec.com the bout was confirmed earlier by Shinsei Gym, Tada's current promoter.
(Image courtesy of http://www.zukunft.co.jp)