This assumes that CEV actually works as intended (and the intention was the right one), which would be exactly the question under discussion (hopefully), so in that context you aren't allowed to make that assumption.
Right, I am talking about the scenario not covered by your "(hopefully)" clause where people accept for the sake of argument that CEV would work as intended/written but still imagine failure modes. Or subtler cases where you think up something horrible that CEV might do but don't use your sense of horribleness as evidence against CEV actually doing it (e.g. Rokogate). It seems to me you are talking about people who are afraid CEV wouldn't be implemented correctly, which is a different group of people that includes basically everyone, no? (I should probably note again that I do not think of CEV as something you'd work on implementing so much as a piece of philosophy and public relations that you should take into account when thinking up FAI research plans. I am definitely not going around saying "CEV is right by definition!"...)
I've been working on metaethics/CEV research for a couple months now (publishing mostly prerequisite material) and figured I'd share some of the sources I've been using.
CEV sources.
Motivation. CEV extrapolates human motivations/desires/values/volition. As such, it will help to understand how human motivation works.
Extrapolation. Is it plausible to think that some kind of extrapolation of human motivations will converge on a single motivational set? How would extrapolation work, exactly?
Metaethics. Should we use CEV, or something else? What does 'should' mean?
Building the utility function. How can a seed AI be built? How can it read what to value?
Preserving the utility function. How can the motivations we put into a superintelligence be preserved over time and self-modifcation?
Reflective decision theory. Current decision theories tell us little about software agents that make decisions to modify their own decision-making mechanisms.
Additional suggestions welcome. I'll try to keep this page up-to-date.