Tenchu already had a HD facelift and sold (probably, numbers are vague) around 125k in its first month (June 2007). I could maybe see Konami pulling a Dynasty Warriors and just upscaling the game, terrible visuals and all, and doing a budget release on 360. But if that happens it'll also probably mean the end of Tenchu and I don't think a half-assed port is really what he had in mind with "HD facelift".