What they're planning goes beyond what Reshade can do, since Reshade is only doing local graphical manipulations on the data sent from the game itself.

They're updating the engine to allow for things like more layers, more object placement, more light sources, etc - things that Reshade and other third party programs cannot do.

Just improving some of the muddied textures on gear is going to go a long, long way, even though they warned that process is going to take years.