Lot's of fun stuff to analyze here.
So, we have a big drawback with the Seraphim: without direct contact, they can't take orders. If Vegapunk steals the Seraphim, the only people who can actually take them back would be the Gorosei, and they'd have to contact them directly.
As long as one Vegapunk out of 7 survives, it's a great threat for the WG, as the Gorosei obviously don't leave Mary Geoise, so the remaining Punks would be able to control any Seraphim they ran into.
So, now, we have a game of Keep away with the Punks. Even in Sentomaru goes does, the other Punks can still order the Seraphim. The Straw Hats will fight CP0, probably Kizaru, and a few Seraphim.
I'd expect to see:
Zoro and Brook vs Kizaru
Luffy vs Lucci
Kaku vs Sanji
Stussy vs Robin
Jinbei vs S-Shark at some point
And, I now expect S-Snake to betray all parties. While the other Seraphim has shown no emotion so far, S-Snake has been seen smiling multiple times.
We know from Vegapunk that it's impossible to erase the nature of a being, from the Mechashark. That means S-Snake still has some elements of Boa's personality.
Guess who HATES being ordered around? This chick:
Oda is setting up a blind spot here: we assume the Seraphim are going to either go with the Punks or CP0. What if one of them, or multiple, just stop following orders? What if those things on S-Snake and S-Hawk's arms, ARE control chips, and they... just, rip them off?!?
Look at S-Snake's face in the bottom panel. Everyone else if looking to the right, while she's looking to the left with ellipses in a text box.
S-Snake is going to go off on her own, IMO (and possibly run into the Blackbeard Pirates or Cross Guild).