Sadly I think this probably is the max we are getting this generation. Even exclusives like KillZone, Infamous, Ryse, TitanFall didn't have better texture resolution. The best they could offer is textures that we have seen on PCs many years ago. Developers seem content with cramming textures into memory without any kind of streaming. Thus the capacity is wasted on storing huge amounts of medium resolution textures, whereas streaming could have allowed for the use of ultra-resolution textures.
It gets worse on PCs, games like BF4, COD Ghosts, Thief and TitanFall exceed 2GB of vRAM without offering any kind progress on textures, they are now joined by the late DayLight, first game on the Unreal4 engine, a simple claustrophobic game that uses 3.0GB of video ram @1080p despite it's modest textures and all because of the lack of streaming.
In the past, most of the graphical improvements in games came from textures, nowadays textures are retired to second or third places behind other 3D features.