Next summer the PS3 version of this title will be taken offline. So Square Enix have announced an upgrade program.
If you have Final Fantasy XIV or plan on buying it. Between now and December 31st 2017. You can upgrade from the PS3 version to the PS4 version for free.
They did the same upgrade deal when the PS4 version was released. This is a. MMO which requires a paid subscription.
If you have a PS3 and PS4 and don't have this. It's worth the 2 quid it's a decent mmo. Plus you get 1 month free when you register your copy. So you will get at very least a month's play out of this.http://www.dualshockers.com/2016/10/17/final-fantasy-xiv-stormbloods-free-ps4-upgrade-detailed-gets-new-screenshots-and-art/