LE Quest Idea: Deadra

[VV00d13]

So after watching the Arravile cinematic trailer: http://www.elderscrollsonline.com/en/media/videos
I was thinking that would it be possible to introduce Deadra quests in Skyrim.

I know it was a Oblivion main quest thing.
But I kinda liked it?

Something in style with "continue on the Civil war"

So after the civil war the armies thins all are fine, but on the planes outside WhiteRun a portal opens and the armies (Stormcloaks or Imperial) Has to defend agains a deadra army.

So you meet some cool deadras, maybe a new awesum monster, hack n slash.

And there are 2 ways of compleation that either u like do a loong quest to Mages college to learn how to close the gate and so on, then join te big war.
Or if the creator has the energy to create a small dungeon, that you enter the gate, with or without an army (after fighting outside) and maybe storm something of a deadra castle to close the gate.
Almost copy of oblivion, but it is hard to get an idea that is "new and fresh" but it would be cool