Honestly if they are even going to bother they need to push it even more into the crazy. They already split the one into a binary duo. For the next movie it should be a triad with the next character called something related to “Two”. That way we’d have Neo, the One, new character and then Trinity. They could say it was the plan the whole time. Given how much the Wachowskis like playing around with gender, identity and relationships, I wouldn’t even be surprised if it happened.