Listen to DaB, he's wise beyond our understanding.
Anyway, Im happy to say that I completed ogre and arakkoa storylines. The funnest part in arakkoa campaign will be the Old Gods and in ogre campaign the Titans!
However I still need to think a bit on the character of Ikiss.
Though orc and draenei storylines are mostly done, I have to adapt them to missions, make the role of Durotan and his personal life have more massive effect for the sake of melee missions in campaign.
However there will be some weakspots:
In draenei campaign some missions will be played by orcs.
In some parts of the campaign heroes will appear that will only be in it for 2-3 missions.
Horde campaign will be quite messy, however I figured a way to make it smooth, so no worries.
As you can see campaign storylines and even the missions are planned already, so we dont have to worry about a thing. Right now I am focusing all my imagination, lore knowledge and playing experience to make the melee races. As you already know FoD wont have flying units, but the melee units will be epic!