It is unreasonable to expect PayPal to come back right away
However, I see no reason why PayPal would not accept doing business with Clixsense again. All type of liability and risk was removed. No upgrades, no purchases, no MLM/Pyramid like elements. If other GPT sites offer PayPal, why can't CS..........I think there is more to this than just PTC. As some other sites, including GPT+PTC still offer PayPal. One of those GPT/PTC is U.S. based as well and even has a no limit cashout, you can cash out anytime and get paid within 48 hours, and no minimum. I will not mention the site, but they use only PayPal and have been in business for far longer than CS, and doing well, despite offering far less perks than CS.
So I think there is more to this story than just PTC...
Hopefully PayPal will come back to CS one day. Though Payoneer is a good alternative (but not for low balances).