Hello all, this is GodzillaFollower1998!
I'd thought I take a moment of your time to give you this little announcement, concerning those who wish for a full story about this one shot. Well, those people will be pleased to know that a story including Psycho Shinji is in development!
I've recently gotten into an EVA phase, mainly due to re-watching the original series and films and also from watching some videos by a fellow on YouTube under the name animekid9000. I've also had the joy of reading some pretty damn good Evangelion stories on FanFiction, such as Advice and Trust, NGE: (Not) the End and Shinji and the Doctor and many many more (check my favorites). All of these have re-sparked my love in this series and have given me more ideas for my story.
I'll give you a brief summery on the plot:
Set after Episode 14, Shinji's experience in Unit Zero has left feeling hallow and empty. While this eliminates much of his hesitation and fears, and opens his eyes to the world he lives in, it also leaves alien to normal emotions and anything he feels quickly passes into nothingness. This disturbs him, until one incident reveals to him that taking life gives him a brilliant burst of contentment. The story will follow the coarse of the series, with so far unnamed inclusions of themes from the Rebuild films, and follows Shinji as he takes his new life by the throat.
This will be dark story, with violence, gore, mind f**king and other such things, and I plan to include much of the original themes of the series while also exploring some new ones. I will also take notes from Advice and Trust and Shinji and the Doctor, if only for pointers on how to do a more emotionally (or unbalanced) stable Shinji. There'll also be a lot of horror movie/series references and other such things, so keep your eyes pealed!
Do not ask me when this story will be out, it will be when it will be. I'm working now, I'm typing this during work, so time for writing varies for me. But know that it IS coming, and I hope you enjoy my take on a bloodthirsty Shinji.
Till then, this is GodzillaFollower1998 signing off!