The only things DSLRs will always have over smartphone cameras is physical sensor size and glass (optics). External lighting control is possible on smart phone

The only things DSLRs will always have over smartphone cameras is physical sensor size and glass (optics). External lighting control is possible on smart phones but definitely a fringe option at this point, but that's more a function of market size than physics, unlike optics and sensor size. Everything else is processing and software. Processing on smartphones is progressing WAY more quickly than DSLR. Takes Canon a couple years for each Digic processor generation. New smartphone image processor generation each phone cycle.