I think that TOW will be much more story driven and based, fending off the corruption and saving/expanding the purity when the world is at stake. It's something that's gonna make it a much different experience from Terraria, whether it be better or worse, I still think its gonna be a great game that ill enjoy quite a bit. The idea of quests is an appealing one to me because maybe you can do menial tasks like killing a boss, which you will do eventually, and have some NPC reward you along with the drops of the boss. Maybe a way to build up some currency (Nobody I know in terraria has more then 30 gold at then end of a playthrough besides me) in a cooler way then just grinding. I can't wait regardless, based on the art style and the creators of a game I have collectively over other platforms of 3000 hours, I would buy this game 10 times over. I can't wait!