Support different accounts on same gateway

[Kilbourne]

The company where I work is changing its country. So we had to create a new account ( on different country) for each gateway we use ( stripe and paypal express). While using these new account for new transactions, we have to support the subscriptions of the old accounts.

I'd like to able to specify secondary account settings for a gateway and the plugin handling the legacy subscription. In particular for Stripe, which has a more complex and less encapsulated gateway class.