There is no program or any special solution to making graphics like Wildstar. You can do all of that in Heroengine and the basic tools (Maya, Max, Photoshop). What you do need are talented artist/programmers that can pull off such a look with their models, textures and shaders. Carbine Studios (Wildstar) has a very large staff of seasoned veteran game developers. There is nothing that will get your game looking like that other than skill and money, Hero has the capability of creating something like that with the right talent.