  We point out two simple but instructive possibilities to modify the
tri-bimaximal neutrino mixing ansatz, such that leptonic CP violation can
naturally be incorporated into the resultant scenarios of nearly tri-bimaximal
flavor mixing. The consequences of two new ansaetze on solar, atmospheric and
reactor neutrino oscillations are analyzed. We also discuss an interesting
approach to construct lepton mass matrices under permutation symmetry, from
which one may derive another nearly tri-bimaximal neutrino mixing scenario with
no intrinsic CP violation in neutrino oscillations.
