From what we've seen the Unreal Engine 4 looks absolutely stunning. Unreal Engine 3 has been used for years, and despite now being many years old, games can still look beautiful and run ridiculously smoothly when built on the Unreal Engine.
Hopefully the 4th rendition of Unreal Engine will be able to render even more life-like graphics whilst still staying smooth and easy on the eyes in terms of frame rate and overall performance.
We'll probably see dozens of Unreal Engine 4 powered games in the near future, and a brand new one that has just popped up is a thriller title by the name of Without Memory. This particular title is being developed by a Russian development studio by the name of Dinosaurum Games, and it is planned for a release some time in 2016.
In Without Memory, the player will follow the story of a girl who awoke in the middle of a forest without any prior memories, and according to Dinosaurum Games, this 'interactive thriller' will have tens of endings.
It looks like Without Memory will offer a similar play experience to Quantic Dream's Beyond: Two Souls, however it's sounds like Dinosaurum Games will make sure the player feels as if their choices really matter, which is something that Beyond: Two Souls failed to capture.
2016 is still quite far away though, but hopefully we will hear more about Without Memory fairly soon. Perhaps we'll even see some kind of cinematic reveal at this year's E3.