[mks]

Your issuer could talk directly to your private wallet (e.g. on your phone or on server). You could preapprove requests coming from your issuer to be automatically executed so that there is no payment delay. This scenario would be somewhat similar to Direct Debit transaction and would require wallet software supporting automated requests.

Implementing interactive approval would be more difficult to integrate. Authorization systems typically respond pretty fast, so there might be automatic timeout in the payment chain (terminal, acquirer, schema network, issuer) if the transaction was waiting for your interactive confirmation. Maybe some magic with initial pre-auth and subsequent post-auth attempts at regular intervals could work but would be no fun to implement either.