Yeah that looks like The Witcher 2 or possibly The Witcher 3.
It looks excellent. If that is what hey are capable of then it would be a replacement.
I would say that the most demanding game I play is modified Skyrim where I use extremely high resolution texture replacements instead of the vanilla textures.
Right now my monitor only goes to 1920 1080, but those individual textures are like 6000 x 4000 just estimating.
They are very nice looking and really make the game come to life, but seeing this image tells me that they could likely handle them, and if not now, then very soon no doubt.
The iPad Air 2 uses Apples A8X which has 3 billion transistors, and comes with Imagination Technologies new PowerVR GX6650 GPU with six clusters (up from the four-cluster GX6450 on the A7). To get the greatest graphics performance out of the A8X chip and iOS 8, we created Metal a new technology that lets developers design highly immersive console-style games. Apple also created Metal, which is a new set of APIs optimized to allow the CPU and GPU to work together to deliver detailed graphics and complex visual effects.
Take a look at these frame rates produced at their native resolutions. Keep in mind these are for portable devices that are less than 1/4 inch thick.