i think PayPal will enter just after everything get regulated and goes mainstream, so we are talking about few years still.
Paypal more likely to pair up with XLM as the coin was their investment.
Ive read conflicting messages about the partnership with PayPal by Stellar lumens, unsure if it is fake news or not
those are fakes like the amazon partnering stellar stuff too. then only real one is IBM partnership so far with stellar.