I only see Hawkins switching sides, I doubt Apoo will.
Hawkins is probably already on Law's side. He let him live. And we have to see what Apoo does. I have a feeling being cut by Zoro will have him switching sides because he was pissed Queen put him in that predicament.
Mark my words, all 9 Supernova captains (Bege, Bonney and Urogue included) are meant to be Luffy's New Age allies, as Whitebeard had or any other Yonko currently has. The strawhat fleet are his subordinates, but the Supernova are his endgame allies. Not saying they will all follow him after this arc specifically, but I feel its super on the nose at this point:
- Law: Obvious
- Bege: Obvious
- Drake: Obvious and somehow Luffy will help him achieve his goals and change the Marines with Sword
- Hawkins: If already planning something with Law after being spared, he is right there with them
- Kid: On Luffy's right now, but I expect them to still be rivals after this arc. Potentially a big fight happens on Lodestar or near laugh tale and Kid concedes there as the last Supernova. Killer included.
- Apoo: wait later this arc, we'll see what happens.
- Bonney/Urogue: Need future arc focus but Bonney seems totally set up to support Luffy considering her tragic relationship with Kuma and potentially the Revo's. Urogue is an enigma