So just recently we’ve seen a new trailer for Steins;Gate movie that is coming this year and in this world line. The trailer kicks off with a haunting tune with [ Believe in Me ] (Steins Gate Original Soundtrack, 5pb.) and with a voice over of Kurisu telling us what’s on her mind and what she’s thinking. Along with that are superimposed words on the video telling us that there is a world line that everyone hasn’t experienced yet, and flashes of characters that are wearing clothes that aren’t seen in the anime and the game; which further reinforces the line that it’s about a different world line. She hints that she remembers the events in other world lines, and it might be quite possible that yes, it is indeed a world line we have yet to see.