Not sure if there would be any "good" options for repairing the hole. These seats are made of cheap leather and chances are a couple years down the road it will mess up again.
If it was me and I really wanted new seats, I would replace them. The car won't be a classic till 2020. Until then value of the car will not go up much if at all and who knows what the value will be as an antique.
I say go for it and enjoy new seats. Hell the car won't be worth 50,000 as an antique, shouldn't kill the value.