The PJ would be a nice upgrade, maybe
@BMXTRIX can chime in since he is current with the scene and would know the best values.
I'm sure you can get a unit that will control both Bluray and AVR, or you can get a cheap harmony universal to control everything.
Since you are running just a 5 channel setup, most any midrange AVR will do the trick. Denon x3500 is probably one of the best bang for your buck units.