PayPal PSD2 - new European Union directive from 14th September 2019
Because CiviCRM is open source there is no supplier who you could ask to do this. 
Basicly it comes down that someone develops the software to work with the new standard. 

In Open Source we have a saying that you have to scratch your own itch. Means that if your organisation is dependent on credit card payments and paypal, your organisation has to make sure it keeps working because its your organisation who would suffer.

If you have a developer in your organisation then he or she could do the job. But If you dont have a developer you have to fund a developer to make it working for you.

In this case, there is a likely change that other organisations are also willing to contribute (eg developer resources or funding). But you have to find them and come together.