remaking this game would not be easy at all..especially with the story
The problem itself isn't just continuing where you left off or creating a new story; it's about the person or people having the necessary commitment to actually do it, regardless of whether it's a large game or not, and whether unforeseen events happen or not.
Because the premise, the basis of this style of game is basically: a young man (MC) having a relationship with an attractive MILF (mother, stepmother, or someone who isn't related to the MC), with secondary characters participating to add variety to the script.
Games in this style: The Golden Boy, Crazy Son, True Bond, and there must be some others whose names I don't remember right now.
Therefore, the first crucial point is commitment.
NOTE: I know it's not easy to create a game and that unforeseen events can happen, but I think you understand what I meant.