Sprint announced the Galaxy Forever upgrade program back in February this year, the program allowed customers who leased the Galaxy S7 or the Galaxy S7 edge from the carrier to upgrade to the next Galaxy S flagship when it arrives in 2017 by just making 12 payments on a Sprint Lease. The program made them immediately eligible for an upgrade to the next flagship after 12 monthly payments. It appears that the carrier is no longer offering the Galaxy S7 edge on the Galaxy Forever upgrade program.
The carrier hasn't sent out an official statement on this matter yet but it has been confirmed through multiple Sprint retail stores that the Galaxy S7 edge can no longer be purchased on the Galaxy Forever upgrade program. That's odd when you consider the fact that the Galaxy S7 is still available on this program, both in retail stores and online. It's unclear right now why Sprint has quietly made this change. Customers who wish to purchase the Galaxy S7 edge from Sprint can opt for the conventional 24-month financing plan instead.