Quixel has recently released nDo2 which is available now. nDo allows you the convenience of creating normal maps right inside of Photoshop using Photoshop’s standard tools. Check out the features of nDo2 for Photoshop here.
nDo 2 has a 3D previewer for Photoshop, support for Normal to Ambient Occlusion, full 3D normals, true rotations, custom curves for designing bevels, normal sculpting, and the ability to Zip layers dropping file sizes up to 300%. For more details on nDo 2 Normal Mapping Tools for Photoshop