  Recent experimental results have revealed a surprisingly rich structure of
multiparticle azimuthal correlations in high energy proton-nucleus collisions.
Final state collective effects can be responsible for many of the observed
effects, but it has recently been argued that a part of these correlations are
present already in the wavefunctions of the colliding particles. We evaluate
the momentum space 2-particle cumulant azimuthal anisotropy coefficients
v_n{2}, n=2,3,4 from fundamental representation Wilson line distributions
describing the high energy nucleus. These would correspond to the flow
coefficients in very forward proton nucleus scattering. We find significant
differences beteen Wilson lines from the MV model and from JIMWLK evolution.
The magnitude and transverse momentum dependence of the v_n{2} values suggest
that the fluctuations present in the initial fields are a significant
contribution to the observed anisotropies.
