Is this kind of mod possible?

[egga]

First of all my apologize if my English so confusing,

I've been playing oblivion for a year now. A great game in my opinion especially with the mods. I've been wondering is it possible to make a mod where people take actions too? I mean at this game it seems like the player must do all the work for the world and there is no limitation for the quest. Even if we don't deliver the amulet of kings to Jaufree after one year, the world still static, nothing happen. At first I thought if I don't deliver it quickly something bad will happen. When oblivion gates opened everywhere, no ones try to close it except the player. If the player didn't take action at one quest for a long time, another person should do it or the npcs that involved with the quest should try asking other people. So when we do nothing or refuse to help stop mehrunes dagon invasion, the blades and the council should find another person to do it. After some weeks or month there will be a npc called Champion of Cyrodiil (not the player but npc who willing to do the main quest). Maybe this is a crazy idea or not important. I'm just curious about it. I don't understand about huge modding. I only understand about small mods like change weapon's attribute. After all I'm a mod consumer not a mod creator.