The message of this arc, if there was one, is to keep hope in the mist of despair and keep fighting even when it's hopeless. However, it was never said if you do those things, you will succeed. Just because you keep hope doesn't automatically means everything will work out at the end. Some times, despite your best efforts, you still end up falling flat on your face.HyugaProdigy wrote:
You're not listening . Yes Future trunk and Mai are alive but the whole point of this arc was to GIVE these survivors some HOPE. The message of this arc was to retained their own timeline but Ultimately this arc ended up being pointless because their world have been wiped out from the existence. Trunks and Mai would die anything to protect them but they ultimately failed and they ended up branching off another timeline. In the end Trunk and Mai would still be living full of lies regardless whether it be present or another alternate timeline... Everything before Goku Black incident, they are not the same person, they will no longer recognize what Future Trunks and Mai had to go through.
What's even more fucked up is that they had to deal with the dopple ganger of themselves...
However, once you failed, what do you do? Do you chose give up, mope, and cry about your lost? Or, do you pick yourself up, take what you learned, and moved forward with hope that there is a better tomorrow? Trunks and Mai chose the latter. They chose to move on and rebuild with a world that is closed to their own. They will carry their failure with them forever, but chose to learn from that failure and get stronger from it, instead of whine and cry about how unfair life is.
Which is why the ending is so mature. The message is keeping hope, even when you failed.