Is Koby a Dragon parallel?
-Garp is his mentor.
-Operating outside normal Marine guidelines.
-Willing to stand up to Akainu, when Akainu hates Dragon
-Koby was 16 at Marineford and will be 18 during the Battle for Pluton, which I think will be the next Celestial Dragon Human Hunt with the God's Knights/Gorosei, mirroring the Kurozumi Hunt
-Koby has a strong sense of justice and likes helping the weak
-Has spent most of the story doing absolutely nothing
-Introduced in East Blue helping save a criminal trapped by Marines (Zoro/Luffy)
If Oda gives us God Valley here, I really hope we see Dragon in the Marines as a 17-year-old.
Dragon is 55, God Valley was 38 years ago.
God Valley is probably where Dragon learned the WG is run by Super Demons or some shit.
This also explains the Kong/Garp exchange, where Kong asked how Garp heard the leaked info: he heard it from Dragon.
I still heavily wonder if Garp knew about the Human Hunt, too. Maybe Garp wanted to be an Admiral, and God Valley made him realize he could never willingly serve the Celestial Dragons?