FFXIII Versus WAS PS3 Exclusive, I'm pretty sure seeing as it's developed into FFXV, that it will still be a Sony exclusive. Not sure about KH3, but it was noted that FFXIV will be exclusive PS3/PS4.
Prediction (June 12th 2017)
Permanent pricedrop for both PS4 Slim and PS4 Pro in October.
PS4 Slim $249 (October 2017)
PS4 Pro $349 (October 2017)