Angelina Jolie's Vietnamese Son

We already know that Angelina Jolie has adopted children from different countries.

1. Maddox Chivan - name means "beneficient" - from Cambodia
2. Zahara Marley - name means "flower" and after Bob Marley - from Ethiopia
3. Shilih Nouvel - name means "the peaceful one" - born to Angelina

and the newest addition..

• Pax Thien - name means "peace" and "sky" - from Vietnam

I think she is caring for these children. It may look like the United Colors of Benetton, but that's alright, I guess.
I wonder though on what country she will pick her next child from. Or should she and Brad just have a new one?