It doesn't look like there are any changes beyond what is listed above. The content filter will probably only be useful for BES users. Otherwise, who would reduce it from Adult? And does this mean they are going to allow Adult apps in App World at some point?
No. Shouldn't be any more noticeable changes than what's listed. Gifting and app age rankings are pretty big changes. Add to that WiFi and this is as big of an update as we've seen in a while. I think Carousel look is here for a while.