So I got the vanilla version of Bloodborne when it was on PS+ and got the DLC as well but because of economical reasons I have not been able to continue with PS+. I was in the Old Hunters and my roommate sill in the game but looking forward to playing the DLC as well. Since we both work we did not think getting PS+ for a short time (ie. a month or three) would be good because we know we would end up having to renew it several times. But...the complete bundle is available on the PS network for roughly the same price as three months PS3 and it would only be a one time payment. However we need to know if we could access our save files. I have seen this addressed for disk to disk and digital to disk but not when both versions are digital. Anyone know if it would be no issue to keep playing on our files or would we have to start over? Thanks!
The way that Bloodborne work with regards to DLC and save file is like so. If the save file was created on a game that has access to the Old Hunter's DLC, the data in the save file will be permanently altered to show that it was created on a game with said access. When the game tries to load a save file created in this way, it runs a check to see if the DLC is installed on the device. If it finds that the DLC is not present, it will give the message:
Unable to located Bloodborne: The Old Hunters DLC. This save data cannot be used until the DLC is downloaded again.
This message will always appear when trying to load the game without the DLC installed. However, this will not corrupt or in any way change the data in the save file.
If you do purchase The Old Hunters DLC and install it onto your device, then when the game runs the check on the save file, it ought to load it completely normal. It should load up the save as if the DLC was never uninstalled. No guarantee, but this this is how it should work.
For more information on someone in a similar situation, refer to this Reddit thread. Hope this helps and happy hunting!