  The field of Generalized Parton Distribution (GPD) benefited from a wealth of
exclusive reactions measurements since 2000. Extraction of GPDs from
observables has begun with this first generation of experiments. In the short
and mid-term future the programs of COMPASS-II and JLab at 12 GeV will enlarge
the existing kinematic domain and open an era of high-precision measurements.
Tools for phenomenological analysis are being developed at the same time and
will be mature to handle these forthcoming measurements. In the long-term
future the EIC project will allow an ambitious spin program in the small to
intermediate $x_B$ domain.
