Paypal will never help Bitcoin gain more widespread acceptance. Bitcoin is their competition and even if they publicly say they are considering using it in their system (which many gullible people believed and took at face value), it just won't happen.
Paypal has a near monopoly in their market and has monopolistic pricing and they are going to protect that however they need to. They sure aren't going to help Bitcoin, which could hurt them in the long run.
This.
Bitcoin is here to replace PayPal.