Games get remade for all sorts of reasons, but I think you'd struggle to find one with as heartwarming a basis as this. The Battle of Olympus—a side-scrolling platformer originally released on the NES in 1988, is getting a remake early next year created by its original husband-and-wife team.
Admittedly, that statement is slightly misleading. Per Time Extension, programmer Yukio Horimoto and artist Reiko Oshida (now also Horimoto) were not actually married when they made The Battle of Olympus—though they were in a romantic relationship at the time of the game's development.