My prediction is that boruto will marry a rogue kunoichi and to have a son at 28 and a daughter at 38 the rogue kunoichi get killed on a mission for her home village 9 months after her 46th birthday, sarada will marry the young fire daimyo who gets assassinated 9 months after his 46th birthday, she will give birth to a son at 28 and a daughter at 38. boruto and sarada will marry each other when they are 49. the next generation will start their missions when this generation is 50, boruto and sarada also wont have any children together.