With his knowledge of everything that's happened, he will be able to do things differently this time. All he can do now is go on the same quest again, to try and achieve his goal again and find out what happened to him. However, everything else he has done appears to have never happened, with characters like Alice not recognizing him. In it, Luka is back at the start of the game, retaining both his skills from part 3 and his memories from the end of it. This is a new NG+ mod with no relation to the one by SpasMaran.