So, with what we know about the Dwarf set, and I don't think it will have everything, most yes, but not everything, What tactics do you think you will run into with the dwarves? Since I plan on getting two of the Dwarf Expansions, I am already tossing around the idea of two Ancestor Statues in a dual regiment army. Looking at them, it honestly seems like Ancestor Statues are semi-niche, it would be a toss up in one regiment skirmishes, because it can make your units tougher, to give you an advantage but you run the risk of your opponent running a heavy ranged army to take down the statue before engaging your army so you can't turtle effectively. But in a mixed dual or triple regiment army with only one regiment of dwarves, I don't see it having a place. In a dual dwarf regiment army or triple regiment army with dual dwarf with elves or empire as a support regiment they would really shine and serve their intended role.
Like wise, with the Ancestor Statues, I think a lot of dwarf players will turtle, forcing the opponent to come to them on their terms, especially paired with the Stalwart and Guard key words, which will force the opponent to really commit to kill a unit like an Empowered Hammerers. Of course, the obvious counter to Ancestor Statues would be Plaguebearers which we might see more of, at least in regard to facing dwarf armies. Without knowing what is in the Vampire Counts set at the moment, or even knowing what Lizardmen or Skaven or Dark Elves will bring to the table, it really would be hard to say for sure how they will be countered other than Poison from Lizardmen. Reanimated units that serve as fodder might work just as well, from the Vampire Count side, depending on how the mechanic works exactly.