bitcoin will not "connect" to anything ever, specially when that thing is 100% centralized. the only thing that can happen is if that centralized service (in this case Paypal) started adopting bitcoin themselves and accepted it in their platform.
in this case Paypal will some day start letting people convert their paypal dollars to bitcoin and vice versa because they will have no other choice if they want to stay in the game. but it will happen many years from now when we are closer to mass adoption.
Thats pretty much what I meant.
PayPal may even become some kind of crypto wallet.
Who knows, maybe in like 10 years world won't use fiat but cryptocurriences only, so PayPal and other companies will have to accept this in order to "stay in the game".