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My best guess is that Kuhn would consider the controversy you describe as a sign of an impending revolution in the field of human science.  Not that it will suddenly become possible to prove or disprove one of the theories, rather that new observations and more creative ways of interpreting them will lead to the temporary adoption of a particular theory. 

One of the more ambiguous elements of Kuhn's theory is the span of time over which it is applicable.  Revolutions don't occur in a day, possibly not even an easily defined period of time.  Who will measure when the last person is converted to the new paradigm?