Did you notice Elena's surname was Petrova (so Sasha's mum who is Elena Petrova in SG who owns the golf course and tennis club we have heard about already), and Donna's was Revera (presumably the mom of the Revera who is on the first team)? It's strange how a lot of people focus on the plot in the Zane household as being the important plot, but to some extent, the way two seeming enemies become a consortium that purchase a college seems most interesting to me. Both pre and reworked versions kept these details mysterious, so I think they're more important than who bangs who. And it's tied in with Helen's past.
Also notice the basketball theme with Katie, and Abigail wanting William to go undercover at the college prerework, while post rework Willi and Miru want to snoop around the college, and Willi's looking for work, in SG Jenna mentions he was coaching the team Katie was on, and Katie went to the same college as Kat...
These are the kind of connections that are good examples to show how Ocean is keeping some elements, changing others, but still broadly developing a similar story while keeping us second guessing him.