Would be fun to make the Hunter x Hunter mod based on the manga, and not the anime.
Now, once again, I will make a mod idea post:
Gate: Thus the Minecraftians fought
SMP mod adding a new dimension. Let's just focus on the anime version cause you don't want the manga to jump into minecraft (manga contains decapitated nude corpses, anime doesn't and stays all age, just what Minecraft need).
Basically, once this mod is installed, there's another world that's automatically generated. There's an invisible timer that starts running and at the end of the timer, the Gate open from the other world, an army of mobs invade and kills every character not from their side. Of course, it would be a one sided war.
Other features of such a mod: Technology, tanks, RPGs (Rocket propeled grenades, not role play games), rifles, choppers, jets. Compatibility with mods such as buildcraft, applied energetics and thaumcraft, mods that adds technology and magic). Elves, priestesses (I'm sure Rory would rock Minecraft), elder dragons, animal eared peoples and thousands of new crafting recipes. Economy would also be a huge addition to Minecraft since PXs would be added, player and NPC owned shops in the alternate world. Add to that metropolises that naturally generate into the main Minecraft world with one of them being the plausible winner of the Gate opening in it. And more.
If only a mod team could get started to work on such a huge mod.