From old to current-gen
When you pick upBorderlands: The Handsome Collection later this month, you’ll have the opportunity to transfer your old save file for both included titles. It’s actually pretty easy this time around, as all you’ll need to do is go into the old game, update to the latest version, choose upload save, then download save in the Handsome pack — done.
Pretty much everything will transfer over, and while Xbox owners can only go one way from 360 to the Xbox One, Sony platforms can upload or download saves to all three supported platforms (PS3, PS4, and Vita). Also, uploading saves just copies the file without deleting the source data. Sweet!
Now for the bad news. Anything from Claptrap’s Secret Stash will not transfer, so Gearbox recommends moving items to your bank first. Also, trophies and achievements will need to be re-earned, and Golden Keys will not transfer. The developer is combating these negatives by granting you bonus badass rank and 75 Golden Keys each for returning Borderlands 2 and Pre-Sequel players.
All in all that doesn’t seem all that bad, especially if you’re playing on Sony platforms and can Cross-Save like that.
Cross-Save in Borderlands: The Handsome Collection [Gearbox]