For me it would be after finishing the game and all the dlc's having a dialogue with Jhonny silverhand about life, love,past,future and various other topics.and it would be much fun to have all these dialogues been answered or talked in real life with Keanu Reeves .that would be perfect ending for me not only we will get to go on a cyberpunky journey throughout the game but at the end having a very heart touching conversation would be cherry on top.