I think this press release adds much needed context: https://epicompany.eu/media-insights/bancomat-bizum-epi-sibs...

Especially these parts:

> The cooperation builds on the success of existing solutions, connecting them via a central hub to create a truly pan-European experience for cross-border payments.

> European consumers will continue using their current preferred solution, now with broader European reach

> The cooperation is based on a central interoperability hub, operated by a future central entity jointly established by the partners.

So it is unlikely that Wero will be the single solution for entire Europe. Instead it is one of many solutions that hopefully will interoperate in the future. But we are still in the MoU phase only, so lets see what happens...