End of Evangelion, we are pretty much clueless on what exactly happened to our protagonists. The world appears completely destroyed, the oceans are made of blood, and Shinji is left alone with Asuka. However, what we do know is that Shinji stopped the Human Instrumentality Project from completing. What if all those people who turned into tang came back to life? What if what Shinji truly wanted was to restart the story from the beginning and try it all over again? Or what if the world of Eva runs in cycles, and will not be completed unless certain things happen, aka. Groundhog Day?
Kaworu himself states “The promised time has come, Ikari Shinji-kun. This time I will, at least, make you happy.” If this where truly a remake, then how could he say “this time”? We all know that last time they met Kaworu did not “leave” on good terms with Shinji. Perhaps Kaworu himself is the only person in this story that knows this is just a cycle.