I'm not even sure if From Software can do it again. Bloodborne is simply leagues ahead of DS3. I think it even dethrones DS1 but it's debatable. Demons is amazing, but slightly nostalgia tinted as Dark did so much to advance the overall package. DS2 is good, but a little convoluted and bloated.
Tbh I'm actually a bit concerned From won't ever be able to touch DS1 and BB again. Whatever is finally tackled next it either has to be BB2 or another new strain. DS needs a rest. I don't give a shit about Armored Core or whatever they're currently working on, so I guess I'm sitting it out till they do go back for BB2 or another Souls venture of some sorts.
Oh, to answer the title, no one lol.