Ubisoft sent one of those homemade Q&As to several gaming sites, including GameZone. There you can read what Fabrice had to say about the Hammers of Fate expansion, about the number of dragons among others:

"Dwarves worship Arkath, the dragon of fire, so it quite sensible that fire dragons appear to help them, just like the dark elves and Malassa. Dragons are at the core of Ashan, the world of Might and Magic. If I do the calculation correctly, only half of the factions had a dragon as a tier 7 creature, so that’s the fourth, which doesn’t strike me as overwhelming."

Meanwhile, at GameSpot you can find ten new screenshots of the expansion, all of them in the new snowy environment that makes the game look quite different. GameSpot also has another preview of Dark Messiah, this time focusing on the The Dead Man's Trail level. They warn us that minor storyline spoilers are included, so you might want to skip that article.