Swift published a post introducing the concept of tokenization and shared ledgers, which could replace the need for messaging between financial institutions. Swift currently operates a global messaging layer, and a global shared ledger may eventually cause that layer to disappear.
The article initially argued that in addition to a shared ledger of payments, there would also be a need for rich data, such as that required for anti-money laundering (AML). Ideally, data would be communicated via messaging. It then suggested that the ledger could be based on an adapted version of its centralized Swift transaction manager. (Ledger Insights)