John Paul II  was the first non-Italian Pope in exactly 600 years, so other things being equal, his successor would presumably be Italian.
The first female pope will make the church go back to all-male popes.
There is no way to know if a pope will ever be female, nor if there is one, that will make the church revert back to male popes.
( z1 make :ARG0 ( z2 person :ARG0-of ( z3 have-org-role :ARG2 ( z4 pope ) ) :ord ( z5 ordinal-entity :value 1 ) :mod ( z6 female ) ) :ARG1 ( z7 go-back :ARG1 ( z8 organization :name ( z9 name :op "Church" ) ) :ARG2 ( z10 person :ARG0-of ( z11 have-org-role :ARG2 ( z12 pope ) ) :mod ( z13 male :mod ( z14 all ) ) ) ) )