There's absolutely no chance in hell that that you'll be able to upgrade your Xbox 360 copy to a PlayStation 4 copy since the PlayStation 4 obviously can't recognize Xbox 360 discs. The only chance you have is that a local retailer will hold some sort of trade-in offer. PlayStation 3 to PlayStation 4 and Xbox 360 to Xbox One could happen, but PlayStation 3 to Xbox One or Xbox 360 to PlayStation 4 is simply impossible.
I recall BF4 doing something similar to this? Just an extra 10$ for the next gen version... I don't see why Rockstar shoudn't/wouldn't do it..
Except it was limited time only. That offer only lasted until like march 31st. Sneaky ea bastards made people give them an extra $10. Now you have to buy bf4 AGAIN for the full price of $60.
100% False. Example: if you bought the PS3 version of BF4 but wanted the PS4 version later on, you could pay $10 for that. You would download the PS4 version for that $10 but it would still require the PS3 disc to play it on your PS4. $70 would give you both the PS3 and PS4 versions.
I also love how some people say that R* asking $60 for the PS4/XB1 is perfectly fine, while a lot of companies such as EA and Sony got called out for moneywhoring with their games when they didn't. EA didn't do it with FIFA 14 & Need for Speed Rivals and everybody called them a bunch of moneywhores. Sony doesn't do it with The Last of Us, everyone calls them moneywhores. Rockstar doesn't do it with GTA V, everyone's fine with it. Double standards eh?