Straw Hats & Vinsmokes Vs. Big Mom Vs. Bege - Whole Cake Island Arc Showdown

Let's talk about how the Whole Cake Island arc will come to an end. In previous threads we discussed all the individual topics (Mama's Defeat, Mama vs. The Vinsmokes, Bege's Betrayal, Sanji Saving The Vinsmokes), now it's time to bring them all together:

What We Know:

• Big Mom plans to kill the Vinsmokes.
• Sanji wants to save them / not let them die. The Straw Hats will help Sanji.
• Bege plans to betray Big Mom.
• Luffy wants to "wreck the Wedding".
  

We can additionally assume that Bege started to make his move. Jinbe spoke about a certain "plot" that would unfold during the ceremony and we saw Bobbin being shot, most likely from Bege & Co.

Spoiler: Manga

That means not only Mama herself will use the wedding ceremony to launch an attack, both Bege & Luffy will do the same thing => Wedding = Big Battle Showdown

Battle Participants

Assuming the wedding turns into a battle like that, we have:

The Straw Hats

Goal: Saving the Vinsmokes Allies: The Vinsmokes (to some degree) Enemies: Big Mom, Bege (maybe)

The Vinsmokes

Goal: Ruling the North Blue, but during the wedding their goal will quickly turn into "surviving" Allies: The Straw Hats (to some degree) Enemies: Big Mom, Bege (maybe)

Big Mom

Goal: Killing the Vinsmokes, probably also killing the Straw Hats (keeping Brook as doll) Allies: / Enemies: The Vinsmokes, The Straw Hats, Bege

Capone Bege

Goal: Apparently taking over Mama's empire Allies: / Enemies: Big Mom, The Vinsmokes & Straw Hats (maybe)

Right now, the situation for the Vinsmokes, Straw Hats, and Big Mom seems to be pretty clear. Bege is a big questionmark. While he seems to plot taking down Big Mom, we cannot be sure whether he'll be friend or foe towards the Straw Hats, so what will it be?