The #WorkingGroup will continue to work on: Payment Request #API, Payment method identifiers, Payment Handler #API and Payment Method Manifest. Priority is to get the Payment Request API adoption by coordinating with browser vendors, payment handler #developers and merchants.
To understand where the Second Screen Working Group is going and its expected work on the Open Screen Protocol, watch Mark Foltz' lightning talk at #w3cTpac in September w3.org/2019/09/TPAC/ac-2scre…
Also from @somelaniesaid, please refer to this great resource "An adventurer’s guide to W3C specs", where she explains how @w3c#WorkingGroups build mature standards, taking the ex. of guidelines devlt for implementing and using accessible technologies