17 years ago - Jamie Reyes is born.
2 years ago - 15-year-old Jamie finds the Blue Beetle scarab, which bonds with his spine. He becomes the new Blue Beetle and works with his friends & family to protect El Paso.
1 year ago - 16-year-old Jamie is captured by the Reach, the alien race that built the scarab as an invasion tool. His scarab's AI chooses him, & together they defeat the Reach. Jamie joins the Justice Society.
Jaime Reyes is a home run of a character, and there's very little that needs to be changed with him. He's a young, engaging character with an unique setting that is as much a character as his fantastic supporting cast. He's as close to Spider-man as DC has ever come, and that's high praise indeed.
It was important to include his conflict with the Reach, because it's central to his journey. The only small change was to make him a member of the Justice Society instead of the Teen Titans. This was both because the lineup of the Titans is pretty full at the moment when he's ready to join a team, and also because he fits better into Power Girl's Society.