Is cross-platform/title data transfer possible...?

…from a PS3 (Borderlands 2) to PS4 (Borderlands: THC), or vice versa?

You can transfer your characters (one at a time) from PS3 to PS4.

@AMG_75 Thanks for the quick/informative response.

Anytime.

The cross save option is right there on the main screen, you can’t miss it.

Additional details here:

http://www.gearboxsoftware.com/community/articles/1338/cross-save-in-borderlands-the-handsome-collection