The movie ends with Mark returning to Earth to prove his innocence regarding the murder of the prison guard. And Cynthia volunteers to go with him. He appears to have forgotten that he has betrayed CONSENT by:
helping Cynthia, who was one of the intruders onboard the Hydro-Gen facility, escape from the prison.
joining The Illuminati, who provides him with the G-Saviour.
participating in the defense of Gaia during the Final Battle, fighting the CONSENT attack force. In other words, there's a lot more to answer for than just his original crime, and given how CONSENT operates, a death sentence is likely.
explains the reason on how G-Saviour's release is tied in with ∀ Gundam lore.