will we have a multi part story on other species like the frukku / omni / banetai / what have you in the same vein as kenopsia or are the kraizen too involved in the stories of everything that at least one part WOULD be something pre existing in kenopsia?
the multi-part structure IS inherently based upon the Kraizen and they fact they've existed through ALL of time, with each part chronicling their major eras!
i do have a possible story based entirely on the Omni, Corpse Eyes is less about the kwaiz and is about dragons, and To Be the Last especially will focus on the smaller guys like Frukku and Banetai! as for individual multi-part stories, probably not; their stories are not as grand as the Kraizen. but i am not opposed to single-part stories that focus on their species, with no/minimal Vani interference
BUT YEAH the Forever Ocean is pretty intertwined with the Kraizen, with them acting as the catalyst/the flagship twist of my universe. Pre-Brand, you're gonna see and have contact with Kraizen. Post-Brand, you're gonna hear tales of the Star Dragons (Vani), if not fight them directly.