There is a report that shows what the following months potential billings could be based on current rebillings scheduled. It only shows a forecast of the the next billing round and does not take into consideration future new subscriptions or future cancellations. The report isn't exact, so it is only able to give you a rough estimate.
The Recur Bill Predictor can be found under Reporting Transactions Recur Bill Predictor
Click 'Show Detail' to expand the months to show the specific members who will recur