Amnesia can replace Omega for the prediction part of Newcomb's problem, but that is not the only function Omega serves. Omega is also shorthand for some simplifying assumptions: that you accept the problem statement as definitely true, that no clever third options are available, etc.
This is equivalent to Newcomb's Problem in the sense that any strategy does equally well on both, where by "strategy" I mean a mapping from info to (probability distributions over) actions.
I suspect that any problem with Omega can be transformed into an equivalent problem with amnesia instead of Omega.
Does CDT return the winning answer in such transformed problems?
Discuss.