  The impact of potential future measurements of beam charge asymmetries on the
current knowledge of Compton form factors is evaluated. Elaborating on the
results of a global neural network fit to deeply virtual Compton scattering
data, a Bayesian reweighting analysis quantifies the improved determination of
the real part of the Compton form factor $\mathcal{H}$. Such an improvement is
particularly relevant for the experimental determination of the proton
mechanical properties or for universality studies of generalized parton
distributions through analyses of virtual Compton scattering in both spacelike
and timelike regions.
