I forget to say...
Voxel Cone Ray Tracing is not RayTracing because it didn't process the rays to create the result... it only fake the rays or use some tricks to simulate the rays.
Raytracing in realtime is yet impossible for current PC hardware... you can do pre-render or course... so you can use raytracing in pre-rendered cutsceens for example... not ingame.
Voxel Cone Tracing can be done ingame but I can't see devs using it... too demanding... I think they will prefer to waste resources in others parts.