Update: A Snapdragon 830 processor and a VR-ready 4K screen are both likely fits for the Samsung Galaxy S8.
QHD, as we have on the Samsung Galaxy S7, is more than sharp enough for using it as a phone but it's not quite up to scratch for VR, so it's likely Samsung will push the resolution up for the Samsung Galaxy S8, perhaps as high as 4K.
Or maybe it will focus on making the phone thinner.
Samsung Galaxy S8 camera and battery
Samsung is said to be working on a new camera, which will be between 18 and 24MP and have a wide f/1.4 aperture, where the Samsung Galaxy S7 has a narrower f/1.7 one.
Certainly a boost on the 4GB found in the Samsung Galaxy S7 is likely.
But when you consider that many high-end Chinese phones and even fairly big name handsets like the OnePlus 2 launched for far cheaper, it's hard not to wish it was a little more affordable.