Tranche 5 is the Way.
In Tranche 5 lives a 510(b). In this case 510(b) is an Over-Funded Claim. This Over-Funded Claim is the Pay-Point for "the Final Payment" to WMI for "WMB and it's assets" by the FDIC from JPM.
This payment is CIC. With CIC, JPM takes responsibility for MARTA, Employee Claimants CIC, and all other WMB issues like paying the WMB Noteholders.
The only reason MARTA can re-file against WMI is because we still have the WMB Title. When The Title moves, so does MARTA.
We have The Title, JPM only has title. Remember; Assets vs assets ?
Now with Tranche 4 closed, all WMI/WMB ABS Trusts can commence distributions to the ABS Trusts participants like MARTA.