Tie subscriptions to particular payment gateways?

HI

Any way (or plans) to allow different subscriptions to be tied to different payment gateways? E.g. want to sell Subscriptions (Serial) and One Off (Finite) access- one via Paypal Express (Subscriptions- so PayPal account required), the other through PayPal Single Payments Gateway (so you can just swipe your credit card)?

Great Plugin btw- another suggestion- add BitPay/BitCoin support.