One possible scenario could be that after the intense battle, Harry and Ginny find a quiet corner in the ruins. They look at each other, all the emotions of the battle still fresh in their eyes. Ginny reaches out and touches Harry's face gently, and then they slowly lean in for a kiss, a kiss full of relief that they are both alive and still have each other.
The kiss after the battle can be seen as a culmination of their relationship development. Throughout the story leading up to the battle, they might have had small moments of connection, glances, and shared secrets. The battle is a test of their love, and when they kiss after it, it shows that they have come through that test and are more committed to each other than ever.
In fanfiction, they might start to rebuild their lives together. They could focus on their relationship more deeply, perhaps getting married and starting a family soon. Harry could finally have the peaceful life he always desired with Ginny by his side.
They might get married and start a family right away. In fanfiction, it's common to see them settling down and having kids, living a peaceful life after all the chaos of the battle.
In some fanfictions, they might start a family right away. They could have a peaceful life at Hogwarts, with Harry perhaps teaching Defense Against the Dark Arts and Ginny coaching Quidditch. Their relationship would be stronger than ever, having survived the battle together.
They could discuss the losses they endured during the battle. Remembering friends and family who didn't make it. Ginny might talk about how she felt when she thought she could lose Harry forever. Harry could then comfort her and say that they have to move forward in their lives while keeping the memories of the fallen alive.
One possible scenario could be that they meet in the ruins of Hogwarts. The war has just ended, and there's a sense of relief and newfound hope. Harry spots Ginny among the crowd of survivors. Their eyes meet, and without a word, they rush into each other's arms and share a passionate kiss. It's a moment of pure emotion, a celebration of their survival and their love that endured through the dark times of the war.
In fanfiction, they might start dating secretly at first. They could be sneaking around Hogwarts to spend time together, sharing little secrets and stolen glances in the hallways.
Their relationship could deepen with shared experiences of post - battle trauma. They support each other through the nightmares and flashbacks, which makes their bond stronger.