The goals of ashes of creation are relatively modest though. It is basically a regular mmorpg but with a few different game design decisions. Many of the features looks big at a glance but when inspected further you realise that they don't do that much. Games with fully player built towns, sieges and destruction already exists, you just take one of those and add some pre crafted buildings to towns, and so on.

Still, making everything required for a regular mmorpg takes a lot of time and effort and most doesn't deliver a quality product, so it is still very likely it wont be great.