  We study the deconfinement and chiral restoration transitions in the context
of non-local PNJL models, considering the impact of the presence of dynamical
quarks on the scale parameter appearing in the Polyakov potential. We show that
the corresponding critical temperatures are naturally entangled for both zero
and imaginary chemical potential, in good agreement with lattice QCD results.
We also analyze the Roberge Weiss transition, which is found to be first order
at the associated endpoint.
