So I read this morning that Samsung has confirmed rolling out Android 4.3 to the GS4 in October. Does this mean it comes directly to all S4 owners? Or do we have to wait for our carrier to roll it out to us? I have Verizon and I know they have a history of taking away features. Will they do that here?
And in general...what will be new with 4.3? Anything noticeable?
Yes, as usually it will ultimately be up to Verizon to release the update for their version. Whether or not they add/remove/alter stuff is yet to be seen (it would be nice if Blocking Mode would be restored, for example, but I'm not holding my breath). Essentially, if Samsung releases the update in October, don't expect the US carrier versions to get it right away...and of all the US carriers, Verizon will probably be the last to release the update based on previous history.
You can see here the changes in Android 4.3:
Android - Android 4.3, Jelly Bean
Of course, some of these default features will be overcome by touchwiz features anyway. In my opinion, 4.3 isn't a *huge* upgrade from a user standpoint.
My advice...just be patient. The S4 is a great device even with 4.2.2. This device will be updated eventually, but there's no reason to not be pretty satisfied with the S4 as it currently is.