I discussed CEV some in this answer. I think the status is about the same: sounds like a vaguely plausible informal goal to shoot for in the very long run, but also very difficult to implement. As Eliezer notes in https://arbital.com/p/cev/, “CEV is rather complicated and meta and hence not intended as something you’d do with the first AI you ever tried to build.” The first AGI systems people develop should probably have much more limited capabilities and much more modest goals, to reduce the probability of catastrophic accidents.
I haven’t seen much about coherent extrapolated volition published or discussed recently.
Can you give us the official word on the status of the theory?
I discussed CEV some in this answer. I think the status is about the same: sounds like a vaguely plausible informal goal to shoot for in the very long run, but also very difficult to implement. As Eliezer notes in https://arbital.com/p/cev/, “CEV is rather complicated and meta and hence not intended as something you’d do with the first AI you ever tried to build.” The first AGI systems people develop should probably have much more limited capabilities and much more modest goals, to reduce the probability of catastrophic accidents.
See also Nate’s paper “The Value Learning Problem.”