While I can't find the exact post, I remember seeing on Instagram an episode description for Spinel's next episode. It was something along the lines of "Steven visits Spinel and the Diamonds, but he isn't sure if he should be there" and it was to be released in the beginning of January. Not sure if it was real or fake, can anyone else confirm?
If this is true. Steven and Spinel need to seriously talk and hang out coz Steven as of now has experienced his friends "drift away" to forge their own futures. Whether Spinel will go "best friend mode" but sooner or later get sick of him. Or a Character Development Spinel will talk to Steven about he she felt when she was abandoned and alone.