Just when you are left thinking Steins;Gate 0 is just dragging us along, they present a trigger which may force Okabe into some real action.
While Shiina is introduced, so is the idea Okabe and Suzu weren’t the only ones looking for her. Which, with Moeka around, raises red flags.
Steins;Gate 0 attempts to inspire interest by noting Okabe feeling a world line shift, and it being noted Suzu didn’t return to the past alone.
Mayushii’s feelings for Okabe are addressed, just as much as him forgetting the Kurisu he has been speaking with is just AI.
As Okabe seeks closure, it seems he is only drawn deeper into his trauma as Maho gets closer to him.