But feel free to post any idea or contribution you want for the quest....
Dovakhin is the Champion of the mortals , He managed to defeat Alduin and his plan to devour the world , but did he really succeed or this to was merely a Delay?
The Quest takes start after The main character exits Sovngarde , it will involve a discovery that Alduin is not yet defeated and that its spirit ( soul ) is flying north recalled by an ancient artifact that catalized the energy of Creation in itself , the tear of Akatosh after the firstborn come to life and Selfproclamed God fall from Heaven on Earth and with it the veil of shadows come over the lands , Atmora where the tear fall become an Ice Desert ... the men gradually leaved the doomed place in search for a new home , but the tear lies there hidden from mortal eyes since eternity .....
The Tear of Akatosh is the final element of the sword but is not needed to complete the crafting, it is trapping Alduin's soul and only destroying with the Sword of the Dragon coul dfree the Alduin's soul and finally let Dovakhin Devour it ....
The Sword will be divided into severall pieces scattered all around skyrim The main Parts:
- Hilt ,
- Tol MinDov ( eye of the dragon gem ) ,
- The rune Scroll ( the spell needed to be carved over the sword blade ) ,
- The broken Blade ( 2 pieces of the original ancient sword )
Ingredients :
- Dragon parts : Blood of an Elder Dragon ( either Akatosh , Paarthurnax or Oodaviing ) , Claw of a black dragon , Scale of a Blood Dragon ,spike of a frost Dragon , Bone of an elderDragon , Horn of Ancient Dragon
- the Unmelting Snow can be found at the Throat of The World
- A Daedra Hearth
- Flawless Red Diamond Magically crafted out of Flawless diamond and Flawless rubyns
- Flawless Azure Diamond Magically crafted out of Flawless diamond and Flawless Zephyrs
- Flawless Green Diamond Magically crafted out of Flawless diamond and Flawless Amethists
- Ebony and Oricalc
Each of the Main parts is protected by an Ancient Dragon of special types with peculiar strenght ( may be named Dragons )
Like ancient Blood , ancient Black , Ancient Frost and Ancient Elder Dragon...
Each with a Dungeon in a portion of thew world ...
Morrowind Dunmeth Pass
Black Dragon Cave
Mountain peack
Ice cave
The prefinal stage will see the Forging of the Sword with a Rithual that will have to be kept during a full moons night for thw whole night in The monastery of Hrothangar the words will be rewritten, in the celestial forge the blade will be reforged and in the Temple of Akatosh the Blade will be recomposed
Finally the travel for the Tear of Akatosh begins ,it will lead you to the last Outposts of men an Island north of Skyrim similar to Solstheim but covered with snow , then from here lead to The north Beyond sea of Ghost to the very Center of Nordic ancestry , the Atmora lands , a vast ice covered pack is the southernborder , large large plains of ice ... I am planning a new mount for that region as the Horses cannot go there....
http://worldsofwallpapers.com/content/fangoria/dragons/page-2/1024/viking-dragon-rider.jpg
The weather will be so Cold that the player will "Have! to wear certified heavy garments or heavy versions of some armours for heavy I mean covered in furs and pelts to avoid freezing...
I amalso planning some new creatures possibly :
Sea Dragon
Giant Troll
The Ice Giant
The White Mammooth
Snow Lion
Ice Dragon
and somethingelse that may come to my mind

Finally four paths coudl be followed
The blade master
1 you Kill parturnax join the Blades , they force you to call the dragon and sacrify him too , start a total war crusade against all dragons remained and this may bring you to that fabled place beyond the Sea of Ghost to retrieve a final artifact ....
The Way of the Voice
2 You join Parturnax and the Graybeard , you will have to either convince or fight off the blades , fight rebelliouse dragons that get lead by a newcomer Strongdragon that lies north in a fabled islad hwere he got ownership of a final artifact , you will have to get there to retrieve it and put in secure fighting dragons and blades along the way ....
The Dragonlord
3 you get inspired by your new fellow , the Dragon odaviin that convinces you to be destined to rule the whole Tamriel and sidens you in a crusade to unite the dragons against PArturnax and his peacefull way , the Blades and their crusade , it's your destiny to rule the world as your blood demands it .... you will have to sail beyond the sea of Ghosts to retrieve a fabled artefact to use to rule all the Dragons and start your conquest....
The hero
4
You decide on your own to either not join any of the parties and siden with the villains and the people , you fight off Dragons , respect Parturnax and his decision but do not decide to help him rule over all dragons and force them into their way , respet the blades and their ideals but as well you decide to side with the people and protect their interests , your quest to become King of skyrim or even Emperor begins there , you will have to start a journey beyond the sea of Ghost to retrieve a fabled item that will help you out ....
The Thalmor Threat
5
Unjoinable faction The Faction are looking too after this powerfull artifact and you will find yourself fighting them many times , but mostly they have sent a Champion too someone known to be one of the most powerfull heroes of their lands , Is unknown how he is but he is surely a Thalmor and a High Elf .....
The quest should begin with a Fist of Northern men from the Island north in the sea og Ghosts , ( name to be chosen yet

Now you will think will you really do all that ? I dunno , I dunno if I have the time and If I won't stop along the way , if I do I will release all done as modder's resource , if not then you will enjoy most probably .... If nothing will come out it will be a nice brainstorming anyway lol ...