Nice Idea Mohamed Saber. The Scourge of Lordaeron is, in my opinion, the best campaign Blizzard created for this game.
I've done myself a few modifications to play this campaign, but I kept it for myself for a reason: They are very simple modifications, meant to fit my preferences.
These modifications are not bad ideas, but are considered simple modifications. There could be a topic for these modifications, but to consider it a campaign, really, it is a bit too much.
Maybe you could make a very complex modification for the whole campaign, with new skills and more tweaks, or even choose another of the campaigns, since we already have this one in the campaign database