So they did retcon Wanda's and Pietro's parentage again. Her real mother is Natalya (Which is the least imaginative name I can think of). High Evolutionary stole the twins, Natalya went after him. Lost a battle to the Knights of Wundagore. After the High Evolutionary was done with his experiments, he gave the twins to the Maximoffs. The twist is Marya was burned but is still alive (and is now Wanda's aunt. So I'm guessing Django was Natalya's brother?). So Wanda goes to her to find out about her father.
While I'm happy Marya is still alive, now Wanda has had four mothers and three fathers. This was still unnecessary. But I'm sure they are keeping this until they manage to tack on more parents to the twins.