I really hope they give the Vampire Counts a little more power and a sense of a really menacing force.
I like the ideas that can come out from here...
First spell cards (maybe american-mini size) would be a great adition to the game. Depending on the level of the wizard (caster) you could use as mani as your level and value of the cards lets you a level 3 could use any number of cards that will reache that level. Also there should be magic specific for certain factions and magic with a global use in the game. About the magic I believe it should work in two forms. The same way it works now, and being able to use a spell (just one) of the aveilable that shoul have a mechanic to work similar to the dice mechanic, and even adding new dices if needed. Success it works, failure... you missed, or even have a bad taste with a misfortune.
Second you could also release mini cards for the other comanders based on their "skills" (warrior, defender, assassin, monster, etc...) and you can also use them instead of an action. And tis would give the game an even more tactical aproach.
I think that would be fantastic. Great ideas there!!
Also I like the comments for Vampires and Dwarfs.
As for the rest. I really think it would be great to have more expansions. I believe the best would be 3 expansions for the next "wave", and I would love to see Skavens, Wood Elves and Dark Elves:
Skavens; because they seemed for the little we have seen from the Vampire Counts expansion really fun to play and full of options. Also Iklit seemed like a pretty good wizard and the only one as far as I remember with long reach instead of medium. I believe this could be made into a really interesting faction.
Wood Elves: I really liked the dancers, they seem a really good disk to have into account, also drycha and dryads seem like a good convination. This faction could have not only another good dragon, but also ENTS XD!! Also an Orion disk might be really interesting.
Dark Elves: High Elves need to be defiled here... I´m expecting Morathi and Malekith like a bad rain!! Also this faction can not only have another dragon, but many more creatures and really dangerous elves.
Also I would do an expansion where they could bring into game the mini cards I said before (magic and skills) and some more disks like mercenaries and more heroes for the factions since I would love to have more for this game:
Vampire Counts: Vlad Von Carstein (which is picted in the box, but not a heroe there) & Krell.
Caos: Epidemius, Throgg & Sigvald.
Empire: Valten & Balthasar Gelt.
High Elves: Prince Imrik, Korhil & Alith Anar
Orks: Grumlok/Gazbag & Skarsnik
Skavens: Thanquol/Boneripper & Tretch
Wood Elves: The Sisters
Dwarfs: Ungrim, Belegar & Grimm Burloksson
Lizard Men: Skink & Lord Kroak
Dark Elves: Hellbron & Shadowblade.
About the Mercenaries: Gotrek & Felix, and maybe some characters from Mordheim (there are a few ones), and Ogres.
And don´t forget about all the mages of the empire.
Also factions missing: Bretonnia / Ogre Kingdoms / Tombkings... and I believe that Beastmen are going to be inside the Chaos faction.