Being a Nintendo fan, I notice that they are pretty behind in terms of graphics techniques. So while my choice may or may not already be standardized to an extent, I haven't seen Nintendo embrace it like they should. I think some of their art styles would benefit from SSS or subsurface scattering. They only recently, about when the Wii U came out began using Physical Based Rendering and it has done great things for their colorful worlds, but for skin shading and things that are gel like, I think their custom shaders are great but from what I've seen from them lately, especially in Mario Tennis Aces, their shaderwork still leaves a bit to be desired.
I think that SSS would be best utilized in a high fantasy Zelda game, I'd love to see that. In terms of standards for next gen, assuming that SSS is already the standard for everyone else outside of Nintendo, real time separable SSS would bring PS and Xbox closer to photo realistic graphics in real time. I mean, Resident Evil 2 remake looks amazing but we're not currently here just yet:
And of course this is probably being rendered at 30 minutes a frame on a crazy decked out workstation but a toned down, less intensive algorithm for getting this effect would be desirable for next gen.