"The main storyline will take players roughly 25 hours to complete, with an additional 15-20 hours of side-questing and exploring," revealed the PR & Community director.
"But don't forget there is an entirely separate online co-op campaign, as well as PvP and the highly anticipated 'Village Mode' to keep players busy in the world of Antaloor long after they conquer the single player campaign!"

In the Village Mode players are given ownership of their own locale in the world of Antaloor. They'll have to manage resources, defend citizens, have the option to take new quests and visit other players' villages. All this comes together in a multiplayer experience which is separate from the main campaign.
Given the above, it seem that there won't be any shortage of things to do in this open world fantasy RPG.