I checked an international itinerary this morning - (Oct) OKC-ATL-HKG-MSP-OKC - and first the old flight segments were no longer right below the new schedules. Also I did not see anyway to confirm changes for the segment changes (4 out of 6 segments) which I thought was a featured of the enhanced itineraries. After the first 2 segments on DL, the remaining flights are NW.