What/Who do you think the next main arc will be centered around?

With the last arc being very heavily centered around Momo as we barely see Okarun till the end. It feels a lot like Okarun is being more focused on after finding his spherical nuggets. And with what looks like the main villain introduced what/who do you think the next arc will focus on. Personally I feel like Okarun is being explored a lot more since Momo went tiny and I feel like the dynamic between him and CSG.