Tenez
Some more information from One Piece magazine 9:
-Nico Robin’s dad is an archaeologist that disappeared in strange circumstances while continuing his search for the Poneglyphs, we discover that he was finally murdered by the World Government.
Oda-sensei revealed some new information regarding former Admiral Aokiji:
-When he joined the navy he was called the “Beast Recruit” and possessed a great fighting force that he had not learned from anyone, but he gained more strength when Monkey D. Garp trained him.
On Akainu and Aokiji:
-Aokiji was looking at Garp's past since he was a recruit.
-His ideology of justice used to be “burning justice”, but later changed to “lazy justice” after what happened in Ohara
-After the Rocks Pirates disintegrated, Whitebeard gathered a crew and became stronger (Whitebeard at the time of the Battle of God Valley is 36 years old, but its most cherished strength was at the age of 38)
-What makes Roger's pirate crew strong and united despite their small number is their confidence in the leader.