Not that I’m aware of, during Epics OC3 talk on the state of UE4 they mentioned that artist will have to redo shaders that rely on the G-Buffer (as the forward renderer only does a depth prepass and doesn’t generate any other buffers)
Personally though I’m sure Epic will eventually adopt more of a hybrid approach like the one seen in Doom (2016) (see here). No idea when / if this will happen but to me it seems like the best of both worlds, of course someone from Epic will be better suited to actually comment on that.