The Dutch iDEAL, on which Wero is based, already works for a lot of global payments. E.g. Stripe and Shopify support iDEAL:
https://stripe.com/en-nl/payment-method/ideal?__=
https://help.shopify.com/en/manual/payments/shopify-payments...
I regularly get offered iDEAL as a payment option when ordering outside of Europe.