That's a fascinating lineup! Thanks for the analysis. However, I have some concerns.
Wanyonyi ain't splitting 1:40 in an 800. Cheruiyot is past his prime and probably can't run 3:44. Nuguse and Kerr can't run 3:42, either. The longer a distance is, the less you benefit from the running start you get in a relay. And what about Hocker? He ran 3:27.6- that's about 2:45 through 1200m. He should be able to run a couple seconds faster than 2:44.
I don't know enough to comment on the other runners.
Relays are messy- ugly. If these teams are in one race there will be trip-ups and handoff troubles. (relay technique cuts seconds- that's why HS and collegiate teams can run near-pro or pro times, and why America's relay team loses) It would still result in a WR race, but not to the extent you predict. And if it were a pure time trial, like the Brooks Beast's world record, then you'd have no... pacemakers. Obviously, breaking the wind is very important, especially when running. Unless you had a separate pacemaker for each leg, thus invalidating the official status of the event, I think the best-case scenario has your list running 1.2-3.0 seconds slower than your prediction.