If it is about better torque at low end RPM, the turbo engines will have the advantage over NA.while it might seem like a huge move away from NA, I for one won't miss the NA. On the most part because I have yet to have one long enough to live with so no nostalgia there. Secondly, unless we are talking about GT Porsches or any notable performance car that are NA based for that matter, there's really nothing much to be missed IMHO.
Regular 911s will substantially benefit from the move to turbo, just like how the current BMWs and Mercs are force fed.
On regular daily cars, I think these new turbo engines are just so much more enjoyable to drive compared to the NAs of before.
But I think what people might miss in NA are the quick response, engine acoustics and the smooth high revving nature. I guess this is more of a feeling kind of thing rather than practicability.
All in all, the move to turbo is for the sake of efficiency and practicability while NA is more of having fun in a different way. It is almost like the case of dual clutch transmission vs manual transmission.