I don't know what the deal is with Mill Creek Entertainment, they are releasing GRAND DUEL and KEOMA on Bluray. As I have previously mentioned in my review of (The Last Gun and Four Dollars of Revenge bluray review), the video and audio transfer is terrible. This is perhaps due to their source material. I am hoping they improve on this upcoming release (but somehow I doubt it, considering their retail price is below $10).
I actually own Blue Underground's DVD of KEOMA from their rare Spahgetti Western boxset, I know that they hold the copyright on KEOMA. Since Blue Underground is also the same company that put a hold on Mill Creek's SPAGHETTI WESTERN 1: DJANGO (1966) & NOW THEY CALL HIM SACRAMENTO (1972) (CANCELED) (March 22, 2011), I would think they'll step in for this new one (unless their rights extends only to DVD and no Bluray).
Keoma - Franco Nero is Keoma, a half-breed gunfighter weary of killing as a way of life. But when he returns to his troubled childhood home, Keoma is caught in a savage battle between innocent settlers, sadistic bandits and his vengeful half-brothers. In a wasteland gone mad with rage and pain, can one man massacre his way to redemption? Woody Strode (Once Upon A Time In The West), William Berger (Django Strikes Again) and Olga Karlatos (Zombie) co-star in this one-of-a-kind classic that fans and critics consider to be one of the greatest `Spaghetti Westerns' of all time. The Grand Duel - Also known as "Il Grande Duello", this classic Spaghetti Western features Lee Van Cleef in the role of a tough, gun-slinging sheriff out to defend a young cowboy accused of murder. Dressed in characteristic all-black, he must fend off the avenging Saxon brothers (who, naturally, drape themselves entirely in white). Action-packed with wild shoot-outs, riotous chase scenes and a fantastic score by composer Luis Enrique Bacalov (who would later be enlisted by longtime fan Quentin Tarantino to create film music for his work), this gritty gem remains a favorite among fans of the genre.