According to Eurogamer, the upcoming PS4 revision won't support BDXL discs (100GB triple layer / 128GB quadruple layer).
"On top of that, while the documentation says that the hard drive will remain the same (Sony has several in circulation, so we assume it means 2.5-inch laptop drives generally) there are no indications of any changes to the Blu-ray drive. This is surprising, as we would have assumed that Sony would take this opportunity to support the new UHD 4K movie standard, supporting standard 50GB discs along with 66GB and 100GB variants. For now it seems that developers are set to stick with 50GB of storage."
http://www.eurogamer.net/articles/digitalfoundry-2016-sonys-plan-for-playstation-4k-neo-revealed
This seems insane.
EDIT: Of course it would make sense for Sony not to change the dev kit drive specs, as game discs will have to continue being compatible with older PS4s, while the retail version of PS4k / Neo could still have a BDXL drive for 4k movie discs.
"On top of that, while the documentation says that the hard drive will remain the same (Sony has several in circulation, so we assume it means 2.5-inch laptop drives generally) there are no indications of any changes to the Blu-ray drive. This is surprising, as we would have assumed that Sony would take this opportunity to support the new UHD 4K movie standard, supporting standard 50GB discs along with 66GB and 100GB variants. For now it seems that developers are set to stick with 50GB of storage."
http://www.eurogamer.net/articles/digitalfoundry-2016-sonys-plan-for-playstation-4k-neo-revealed
This seems insane.
EDIT: Of course it would make sense for Sony not to change the dev kit drive specs, as game discs will have to continue being compatible with older PS4s, while the retail version of PS4k / Neo could still have a BDXL drive for 4k movie discs.