touchwiz 4.3 doesn't do "hide apps" in the app drawer anymore. but it does let you disable and show disabled apps from the app drawer.
word of caution, if/when a flashable zip comes out for us rooted folk, make sure you unhide any hidden apps, and unfreeze anything frozen with titanium backup. for some reason those two things coming from 4.2.2 to 4.3 will cause problems.
hidden apps won't be able to be shown. apps frozen in titanium will cause touchwiz to force close if you try to view them in the app drawer feature to show disabled
sooooooo waiting a few days for a flashable zip (fingers crossed for an unaccosted odexed version).