It says in the Bestiary(and other PF sources) that Rakshasas are the reincarnated spirits of those mortals wholly given to materialistic evil. When they die they are eventually reincarnated again. So, what happens when a Rakshasa becomes good? The possibility of a good Rakshasa was discussed in the AP "Escape Ffrom Old Korvosa". If a good Rakshasa worships a god, do they get to go to them upon death?
Related is that it says a coupling between a Rakshasa and a mortal always results in a Rakshasa. How then do we get the Rakshasa sorceror bloodline for various mortal races? The description does say that your ancestors could have been tainted by a Rakshasa, but that leads to the next question. A sorceror with the bloodline who gets to Lvl 20 in a sense becomes a Rakshasa, expect with alignment unchanged and other things. Are they treated any different to pure mortal races in regards to the afterlife? I know just about all of this is fluff, but I'm writing my own campaign world and I'm just wondering how all this fits together.