If you enable cheats in PPSSPP, here are the specific codes for the PS4-like camera. (Note: Codes vary by ISO region – US or EU).
Most camera mods are applied by replacing the SYS-DATA file within the PES 2013 save folder.
Wait, maybe the user is confused between the camera features in PES 2013 on PSP versus the camera hardware on PS4. The PS4 has a camera (PlayStation Camera), but PES 2013 on the PS4 was released in 2012? No, the PS4 came out in 2013, so there couldn't have been a PES 2013 version for PS4 initially. PES 2013 for PS4 might have been released after the PS4's launch, but I need to check that. Let me verify: Konami did release PES 2013 for PS4, but when exactly? According to some sources, PES 2013 was available for PS4 and Xbox 360. Wait, but the PS4 was released in November 2013, so PES 2013 for PS4 would have been an update or ported after the PS4's release. So, perhaps the user is referring to the camera features in the PS4 version of PES 2013 using the PlayStation Camera.
A: No, it is purely a visual patch. Your 15-season Master League save is safe.