Quote Originally Posted by DBthaONE View Post
As long as you have the PS3 disk, which you already need too play this game now, you'll still have the disk for the ps4 version. After you download the ps4 version you still use the ps3 disk. This has been stated in other places before. So you'll still be able to pay this on ps3, provided you still have your ps3
Actually you are wrong, It is a license migration. When you use the ps4 key to activate your download and tie your account to the ps4, the ps3 license gets removed. Meaning, you cannot log back into the ps3 client, even if its installed on your ps3.