They seem worse.. You dont see pop-in as much because it seems like they downgraded the graphics all together.. When you look out at the walls they all seem jaggie and low rez...
Play the container city map and you can really tell... everything in the distance looks like crap and you can see it going back and forth between low/high rez..
I guess its hard for me to tell if they got worse because they were bad before. I certainly haven't noticed improvements in the graphic department though, which I don't think this patch for xbox was supposed to anyway.