WFC is brilliant here. By leveraging their primary asset (customer relationships) they have jumped to the top of the line in a new ability to deliver services, and capture unregulated payment revenue. Think they need to work quickly to ensure retailers see an upside to expanded Amex transaction volume (see payment enabled CRM).
Clearly there are opportunities for new retailer friendly networks. The new incremental value TO BE delivered is centered around influencing and rewarding the (consumer in partnership with merchants). Given that retailers compete with each other, loyalty is thus useless for retailers which don’t offer competitive products at competitive rates. Thus a “community” of retailers is not as valuable as a “community” of consumers (ie Facebook, Twitter, Android, Apple). Thus platforms which serve the community of consumers will be much more effective.