  The quantum bounce a priori connects several (semi)classical epochs of
Universe evolution, however determining if and how well the semiclassicality is
preserved in this transition is highly nontrivial. We review the present state
of knowledge in that regards in the isotropic sector of loop quantum cosmology.
This knowledge is next extended by studies of an isotropic universe admitting
positive cosmological constant (featuring an infinite chain of large Universe
epochs). It is also shown, that such universe always admits a semiclassical
epoch thanks to spontaneous spontaneous coherence, provided it is semiclassical
in certain constant of motion playing the role of energy.
