In the end, I would hypothesize that the result of the freeing of data and code will necessarily lead to a more robust understanding of scientific uncertainties, which may have the perverse effect of making the future less clear, i.e.,
because it will result in
larger error bars around observed temperature trends which will carry through into the projections.
Because if you don't believe the instrumental temperature record, then why even bother to attempt a very much less accurate method of reconstruction, where the
error bars are most likely
larger than the reconstructed time series itself?