Lumen and Baked Lighting

Does anyone know if Epic plans to get Lumen working with traditional baked lighting? I work on large infrastructure projects for architects, involving both indoors and outdoors spaces. There are hundreds, sometimes thousands, of lights inside and if they are not baked the scene becomes very sluggish. I can barely export film sequences, let alone give clients a real time walk through. It seems such a shame not to get the benefits of Lumen for the daylight system and baked lighting for the interiors.