At least he remembers Anna Kim. I was really worried about DD not having someone to protect her especially since SR and the stepmom would gain power with this situation.
I was actually hoping for DD being pregnant before the amnesia arc. Then after the all the hurt she will experience, she will accept AK’s offer to go to the US. However, for some sort of reason, the handkerchief DD gifted YG would probably fly to YG maybe using some wind power from his late wife. 😂 And seeing the handkerchief would make him regain his memories. (Just like Jisung regaining his memories upon seeing the couple necklace with Eugene kim in Save the last dance for me) —Almost all kdramas characters regain memories this way.
Then, he would either go to the US to get DD or he would stop DD from going to the US.