"The loss of Monteith means that Finn will never fulfill his certain destiny of marrying his love Rachel - a heartbreaking fact in its own right - but also that fans will never get to see the outcome of Finn’s uncertain professional future. Would he have stayed in college? Would he have become a teacher? Monteith’s life was cut tragically short and now Finn’s story has been cut tragically cut short as well."
Cory Monteith as Finn Hudson || season 4 deleted scenes.4x09 Swan Song
"Shum revealed that the cast will sing a few throwback tunes, which were sung by Finn’s character in previous episodes."