I would go for spell penetration. You have plenty of in character reason's why between demons trying to be your friends and the things you have encountered recently.
If you Do spell thematics I would go for more alienest looking magic. Magic missiles that are squigle worms and Fireballs being hot flaming masses of tentacles. etc.
I would also go for a wizard level. Nothing like going back to basics especially considering recent events.
Just a few Ideas. I don't think any PrC's are appropriate in present situation and the ones you have are fine like they are.
Later
If you Do spell thematics I would go for more alienest looking magic. Magic missiles that are squigle worms and Fireballs being hot flaming masses of tentacles. etc.
I would also go for a wizard level. Nothing like going back to basics especially considering recent events.
Just a few Ideas. I don't think any PrC's are appropriate in present situation and the ones you have are fine like they are.
Later