Ok ladies and gents this is what I have heard.
The end times will be coming after grey knights which means they will be going up for pre order 23rd, there will be Nagash, Nagash end times campaign book, plastic spirit host, Mannfred and nightgheist / Arkhan the black / Neferata on some undead monster plastic kit.
There will be a battle report in WD, Nagash vs Tomb kings army, Nagash fights them on his own. He is very expensive.
He can be taken in any undead army. Undead are running rampant through the warhammer world and because of this undead units can be taken in any army.
quelle warseer.