It just seems unlikely to me that every single supernova is going to the New World and will all rebel against the Yonkou and not either a) want to join one of them in the first place or b) be persuaded to join as Ace was to join the Whitebeard Pirates.
So far we have 7 of the 11SN being confirmed as fighting against a Yonkou, leaving us with Drake, Bonney, Bege and Urouge. Just by the way we were shown Drake's interaction with Scotch I do get the feeling that we're getting a curveball and Drake will now be a subordinate of Kaidou.
We were shown enough aggression from Drake as to make it seem obvious that this was in fact a declaration of war against one of the yonkou. But the way Drake phrased it, "Will attacking you get Kaidou's attention?", seems to leave it purposefully ambiguous.
So going by the odds and by Drake's phrasing , I really do see Drake now being in cahoots with the strongest creature in the world.
I see X. Drake being in cahoots with the strongest creature in the world, until a time arises where he can betray him/fight against him–when the odds are seemingly in his favor (i.e. Strawhat Pirates/Heart Pirates alliance). Heck... He has information (probably) that could be vital to bringing down Kaido with...more ease.
X. Drake is part of the Worst Generation, and was named specifically by Brownbeard when talking about them. Someone named specifically isn't going to remain a servant of another pirate forever. The Worst Generation wants to shake up the natural order of things, and bring about a new order to the world.
As for Bege, Urouge, and Bonney. Bonney probably won't get involved in bringing down Yonko, instead evading the World Government and possibly getting tied up with Dragon's Revolutionaries. Capone got sucked up by a floating moon-like object, so god knows what will happen to him. And Urouge... Well... We'll have to wait and see; a mystery surrounds both Bege and Urouge right now.