1:

IDK bout Kizaru, but probably not.

Aokiji is now Kuzan and is part of the Blackbeards, so probably not.

Fujitora would be amazing, but he's a loyal marine.

2:

I dont think so; MAYBE Dorry and Broggy, but probably no one else

3+4:

Killer is Kid's first mate, so if Kid doesn't Killer probably wont, and Kid tolerating Luffy is a next-to-nothing chance.

The Kuja Pirates might join the fleet so they can have a Yonko’s protection and can stay in their home plus Boa can be closer to Luffy as a result

1. No

2. Yes

3. No

4. No

1. No

2.Kuja Obviously no doubt,

Some Wano Samurai/Ninja + Yamato if the pluton arc begin,

Zou Guardians,

Law has the same enemy probably only alliance to take down bb,

3.No, he want to kill shanks luffy will hate that

4No.

Same as @Blackbeard069

1. HELL no

2. Maybe? Not that it would be significant

3. HELLLLLL NO

4. Killer goes with Kid

Imagine luffy getting elbaf warriors on the fleet

Big mom would go crrrazy

Big Mom is DEAD