I am not sure about others but i primary bought the Eshin and Darkblade dlc for the warp grinders and poison wind mortars.

Don't really care about the actual Eshin content and Malus has been lackluster as many already acknowledged.

Instead of Tretch and Clan Rictus, Sneak should have been the FLC lord. Thanquol can also fill the role of the backstabber, coward and so on which Tretch currently occupies.

Well as skaven player i don't really care about 3 or potential 4 dlcs (except my wallet of course) but i do really feel bad for the players of ignored factions ... and i like warriors of chaos who are such one and we have no idea how game 3 could handle woc.