Al knows he turn is coming, he knows his past father is going to have an issue with it as well as Sirius. So before he introducing himself he said "Before I tell you who I am, I need to have Professor Snape here, as what I have to say contains to him as well." Dumbledore nods as he sends his patronus charm off to fetch Snape.
Snape arrived at the headquarters of the Order of Phoenix wondering why Dumbledore sent after him. He was in a meeting with Voldemort and had to excuse himself when he received the patronus.
"Dumbledore I am here, what is going on?" Snape asked as he looks around at his surroundings. He notice a Harry lookalike and a Draco lookalike and was confused. Pointing to the Harry lookalike Dumbledore said "he asked for you to be here."
Al knows he needs to explain a few things to his parents, as well as the confused potion master. He said "Dad named me after two of the bravest people he ever known." Looking at Harry he said "Please don't freak out about my name" he paused and said "my name is Albus Severus Potter."
Snape looks at Harry confused as Sirius said "WHAT YOUR NAMED AFTER THAT SNAKE" shaking his head at Harry "Why would you name your son after that slimy worm." Harry shock said quietly "I don't know" "That not all Dad, is it Al," James said, "You have more to tell them." Al gives James a death stare and continues saying "I was in the Slytherin house, a perfect and seeker for the team. I am best friends with Scorpius and Rose and we were known as the new golden trio. Scorp and Rose were much like Uncle Ron and Aunt Mione were until they fell in love in their fourth year."
Snape sitting quietly asked Al "Does he know, I mean does he know the truth" "Yes" Al said "and he understands why you did what you had to do" "I am currently studying to become a teacher and hope to teach at Hogwarts one day as a potion teacher like you Professor" pointing at Snape. "And to tell you the truth Sirius I think one Potter is going to avoid the red head curse as I'm currently engage to Neville and Hannah Longbottom daughter Alice, who like her father is studying to become Herbology teacher. You may have to look at James for the red head girl I think he is dating one right now" teases Al as Sirius starts to laugh. "My question is how are we going to get home" Lily asks looking concerned and worried "I don't think there are any time turners that can go to the future" she continues to say. "That my dear is a great question, and one that I will be finding the answers to I promise," Dumbledore said as he gathers the members of the Order of Phoenix together to discuss what they have learned from the future generation and how they are going to return them home.