For anyone that had a 0.4.0 save with everything done and can't get the new stuff to trigger, open up the console and type in "mom_var = 18" (without quotes). Then re-do the scene in Hannah's office at the lab (Hannah is your Mom's boss at the lab, if you forgot like I did).
The only problem with this (or using an earlier save) versus starting over is that there were new relationship variables added for Hannah that will always be in Spanish (and non-incest), because these variables only get changed to English and/or incest versions at the beginning of the game when you input the relationship for the Mom/Landlady. You can set these variables yourself if you really don't wanna start over. They are: h_mom = "Mother" (or "Guardian"), h_sis = "Sister/Partner", h_bro = "Brother/Partner", h_relation = "Siblings/Partners", h_so = "Son/Protégé", h_dau = "Daughter/Protégé", h_chil = "Children/Protégés", and f_relation = "Sisters/Friends".