Timeless decision theory, what I understand of it, bears a remarkable resemblance to Kant's Categorical Imperative. I'm re-reading Kant right now (it's been half a decade), but my primary recollection was that the categorical imperative boiled down to "make decisions not on your own behalf, but as though you decided for all rational agents in your situation."

Some related criticisms of EDT are weirdly reminiscent of Kant's critiques of other moral systems based on predicting the outcome of your actions. "Weirdly reminiscent of" rather than "reinventing" intentionally, but I try not to be too quick to dismiss older thinkers.