  We review the current status of the problem of chiral symmetry restoration,
discussing an open question of whether at the $SU(N_f)_A$ restoration point
$T=T_c$ the $U(1)_A$ chiral symmetry is or is not (approximately) restored. New
lattice and instanton-based studies are considered, and some new calculations
are suggested to clarify the issue. We also speculate on possible experimental
manifestations of two possible scenarios.
