Well, that kind of is Zaton's position now, isn't it?
But I don't think that trying to turn this VN into a grand strategy game is a good idea.
I mean, it could be fantastic to have a grand strategy RPG (like Crusader Kings) set in the Desert Stalker universe, the lore is certainly good enough for it.
But it's a stretch to make something like that in Ren'py, and I think that at this point it would be a waste of dev time.
At the end of the day, this *is* still a porn game. As such (at least for me) the ratio between gameplay, story and lewds must be right. This VN is already very story-heavy for a porn game. Adding gameplay would decrease the relative amount of lewd even further. And this isn't about dev time either, it's about the player, because he has to read the story, play the game and keep his dick hard / pussy wet for the lewds.
The "The DeLuca Family" is a game which, although fantastic, clearly doesn't have enough lewds compared to gameplay and story.