Wait, it's been confirmed?
Risen has been a load of fun, and was certainly more polished than your usual Pyranha Bytes game.
Assuming they maintain the good management skills they seem to have acquired, improve on the strong elements, and scrap the bad (the chapter structure that crammed too much content at the beginning and had little to none excluding the dungeon crawling near the end, the final boss fight..) it could turn out fantastic.