: I'm curious, where did you read this? This is the first time I've heard of this. I find it hard to believe seeing as how Maia are essentially angels. Quite a bit different than a man.

It says so in The Shaping of Middle Earth page 165. Quenta Silmarillion chapter 19 that didn't make it to the final Silmarillion.
"Then shall the last battle be gathered on the fields of Valinor. In that day Tulkas shall strive with Melko, and on his right shall stand Fionwë (Ëonwë) and on his left Turin Turambar, Conqueror of Fate; and it shall be the black sword of Turin that deals unto Melko his death and final end; and so shall the children of Hurin and all Men be avenged." Later on the page it says: "But of Men in that day the prophecy speaks not, save of Turin only, and him it names among the gods. (later changed in pencil to "among the sons of the gods.")

In the "Commentary on the Quenta," same book, page 205. Tolkien says: "The apperance of Turin at the end remains profoundly mysterious; and here it is said that the Prophecy names him amongthe Gods, which is clearly to be related to the passage in the old Tale of Turambar (II.116),where it is said that Turin and Nienor `dwelt as sining Valar among the blessed ones`, after they had passed through Fôs`Almir, the bath of flame. In changes to the text of Q II it is said that Turin is named among `the sons of the Gods`, rather than among the Gods, and also that he comes `from the halls of Mandos` to the final battle; about which I can say no more than that Turin Turambar, though a mortal Man, did not go, as do the race of Men, to a fate beyond the World"

This is something I wish were in later versions of the Silmarillion. It is just about the only thing that is said about Dagor Dagorath and the end of the world.
As for Turin the only thing I can say is that he deserved it.

Meneldur