Without seeing a review on the finished game, I'd be willing to risk about 20-30 US dollars, based on the sketchy information we have about the game. Odds are, I'd be willing to pay a considerably amount more if the game turns out to be really good, but I've been burned before by bad sequels to great games, which looked promising but basically tossed out or watered down everything I liked about the previous games. When you pay top dollar for a sequel to a game you love as soon as it's released, and less than two months later it's in the budget bin, and everyone is complaining about how awful it is, you feel robbed. I don't do that anymore.