Sony Files Patent for What Looks Like a Switch-esque Handheld - IGN
A recently published patent suggests Sony is looking into a new handheld.
www.ign.com
As spotted by NeoGAF user ponpo, the patent was filed back in 2015 but was only just recently published. While the controller pieces on the side look as though they may be detachable, they aren't explicitly shown as being removable from the device.