What upcoming role? I think nothing have changed. The role of crypto is still a payment method. Also Paypal themselves are not new on this either. They even adopted Bitcoin last time but I think that was only on selected countries. It is seems they can't get enough and they want to add more. Well that's alright and it's a good help for their customers to get introduced in these cryptocurrencies.
If there are people who are happy and satisfied on using Paypal, there are also people who experience the opposite thing and even these people are also into crypto, I don't think they will touch the cryptos created by Paypal. They already learned their lesson.
I would guess that because Paypal has always been a payment company, they are trying to make sure that they are using crypto as a payment too. One thing I really would love to see is them making sure that you can deposit and withdraw this currency as well. I am not sure if you can do that just yet, but if you can do that, then people who can't use Paypal would be able to start using it, this way we would all be able to accept Paypal payments easily.
I hate the chargebacks and all the financial troubles you go into, I may end up selling a product, and the person can easily do a chargeback, and that means I would not have the product AND the money and I would also owe the transaction fee as well, that's what needs to be stopped.