DS3 patches:
Charcoal rubbing = continuously pressing the X button
Swipe QTE = button QTE
Canoe = analog
Gyro = gyro
Grenades = button
Backpad = button (was always optional)
Camera (hold camera to light) = no idea how they would patch this
DS4 patches:
Charcoal rubbing on the touchpad
Swipe QTE = touchpad
Canoe = touchpad
Gyro = gyro
Grenade = touchpad
Backpad = touchpad or button (was always optional)
Camera (hold camera to light) = no idea how they would patch this
Of course the DS3 patches would still work on the DS4 patch.
The big question mark is how they would patch the camera puzzle. Everything else seems to be a pretty straightforward patch, but the camera one could require a significant patch and I'm not sure they would go through the effort of doing that unless they were planning on re-releasing the game, in which case they should add multiplayer DLC
Link to video?
Yeah, vita REALLY needs better support from sport games.