[Guido]

This is pure guesswork and speculation presumed from the pics released by futaba.
http://dat.2chan.net/18/res/2264476.htm

Episode 16.

Spoiler:

1. Solty kneels before the grave of Bill, the boy who spurted blood and died in the flight accident.

2. Bill was one of the many surviving children from the Blast Fall incident.

3. The man living with Bill and who healed Solty shows her a photo of him and his colleagues from around 12 years ago.
IMO the woman's face in the picture looks familiar while the face of the other man on the left side is conveniently concealed in flash.

4. Miranda beating on Roy made him to grasp his senses.
After a shower, a clean shave up, regaining his bulk, Roy returned to his usual self and is ready to search for Solty.

5. Axela continues her research to find out the deep truth.

6. Rally prepares the final phase of his project.