I'm pretty sure it will be similar, if not exactly the same. Why would they change it?
Personally, I prefer the jailbreak/Categories+CategoriesSB implementation--no limitation on number of app within folders, no limitation on folders within folders, and it fills the whole screen rather than using such a small portion of the available real estate. Oh, and I can choose my own icon for the folder. I like it so much better, I stopped using the built in option on the iPhone 4 and went with the same setup there.
But ANY organization option is better than just moving apps by category onto different springboards. Once I got past fifty or so apps, that got old really fast. LOL