According to a recent interview from John Wardley, the ride will reopen with “greater storytelling” and more special effects and theming:
I’ve got to say that that sounds pretty promising to me! I’ve always felt that Nemesis’ theme could be conveyed more clearly to the first time rider, and that compared to some of the newer themed experiences, it lacks the finer details in places to really help further the storytelling, so I was quite glad to read John’s hint.
I have faith that whatever John is hinting towards will help to enhance the storytelling and make Nemesis’ story clearer as I said above.