The Dragon Age community is capable of extraordinary things. While everyone is waiting for news about Dragon Age 4, a group of people has just released a patch for Dragon Age: Origins which solves most of the problems related to mission, plot, dialogue and game scripts.
Behind there are hundreds of hours of work and all world attention. This is a purer and more stable original vision with some parts not implemented and that allow us to choose changes in several missions. If you want to download patches you can try it via the following link.