According to the Coryani Church (and their derivatives), it is a Divine Mandate that Illiirites are men, and Saluweans are women, and as faithful followers of the Gods, even they do not break this rule.
There will be a rule posted in the Campaign Guide (which is almost done, really!) which will clarify this relationship, as well as more clearly state the sex-specific clergies of Illiir and Saluwe’.
Will that address that it thus seems impossible for there to be a saluwe/illirite caster. as is implied by the illiir/saluwe pantheonistic spell? Will that spell be changing in some way?