[Mithadan]

In the Introduction to Unfinished Tales, CT dates the narrative Of Tuor and His Coming to Gondolin to around 1951, shortly before LoTR was published. There is no specific date for the crafting of Narn i Hin Hurin given in UT, but Scull and Hammond's Companion and Guide date it to around the same time. Tolkien unfortunately never really returned to a full-blown effort to write Beren in the same manner as Tuor and Hurin. However, it seems clear that he intended, at that point, to complete a lengthy version of at least these "mannish" tales.

Whether he intended a similar treatment of the entire Silmarillion is unknown. Based upon the length of the Narn and CoH and extrapolating from the length of the Tuor fragment, these stories together, even without Beren, would likely have been longer than the entire Silmarillion as published. A full treatment of the Silmarillion, in the same style of narrative, would have likely have rivalled LoTR in length.