I like what you've got going there and I agree, especially, with the idea of Bell and Ais fighting Ottar together. There are a few key things missing like potencial level ups and so on, but for what you've suggested I think it's a okay.

Interesting and probably right about the alliance section. Astraea only has 2 members at this stage so I doubt them as a force. I could see Astraea being the judge on Freya's actions at the end of the LN.

Not sure on the Zues element as this is Freya's arc. The book needs to contain some more of her story, resolution and punishment for her actions. There will also be pages devoted to her Familia members as well. There are a lot of moving pieces. Adding in Zues and Astraea takes away from other elements.

It will be interesting to see how the Hide and Seek format changes the alliance building and game format. Are the goddesses disguised and hidden by the Familia or the guild? Do you build an army to guard your goddess giving away their location or is that faint? Or do you devote most of your forces to seeking and have your fastest runner constantly moving your goddess around? Are they allowed to hide in the city which would make combat nearly impossible?

the topic with Bell and ais against Ottar is blown out of proportion. for starters, the two of them don't stand a chance against Ottar at all, so he needs to be nerfed before Loki's trio fight, so it's almost like 5v1 and the duo's symbolic moment is gone. and secondly, in the preface of volume 18 it is clearly stated that it is Bell who must go through Ottar, and this is logical, because this is a conflict between Bell and Freya, ais will be completely superfluous there. I see it this way: The Loki Trio wears down Ottar and then Bell defeats him.

@Frost Fullbuster I agree that we are most likely going to see Ais/Bell vs Ottar. Kind of feels like we are leading up to an SO7 (if the author went through with his original plans for that volume) scenario with some differences. Instead of Level 7 Revis, it will be level 7 Ottar, Instead of the dungeon, it will be during a wargame. Wouldn’t make sense to have everything setup properly (main issue for SO7) this time around but still not do it. Of course, Loki trio will do most of the damage and Bell will deliver final blow but it will still have Bell/Ais vs Ottar in it (symbolizing how far Bell has come). I’m pretty firm on this prediction but still just an opinion that you have to take with a grain of salt.

Aside from magic, I agree.

I don't think Zeus will physically appear, since in Aedes Vesta Omori kind of pointed out that Bell and Zeus's reunion wouldn't be exactly what one would call a reunion, but I do believe he will have a certain presence