Not that there would necessarily be problems, but speaking as a pragmatist, a concept as exciting as a Milch-scripted season of True Detective won’t feel real until its premiere is halfway finished.
We’re saying the same thing about the Deadwood reunion movie, too.
The second big update there is that there are five scripts currently written for Season 3, and while it was assumed that something was cemented as far as the storyline went, it wouldn’t have been the craziest thing in the world to discover that there were some obstacles to be found in the teaming of True Detective creator Nic Pizzolatto with Deadwood creator David Milch.