I confirm what the two previous speakers said :) - the site is under development and will be opened in the coming weeks. There won't be that many sections at first, but by the time the beta version is released, we will try to place comprehensive information on it about what will be in the add-on, when and how. ;)
Added 7 hours 7 minutes ago
another screenshot:
30. Monsters in battle, new ones: Sorceress, Sea Priestess. You've already seen the Skeleton Sniper. There is also a pirate hero (male) - before this, pirates were replaced by knights or barbarians.

there are a few more small bonuses to this screenshot, and to the previous one, on one of our subforums...