Digital only consoles might be a bad bet even for next gen consoles, as digital only still has bad press.
However, we could start seeing digital only, cheaper models this gen. A 200$ digital only ultra-slim PS4 and 250-300$ PS4 ProSlim for holyday 2018 could definitely happen.
That's exactly what I want... the correct way to make this transition is not to go all in 1 way or the other. Provide 2 different SKUs. 1 ready for physical media, 1 for digital only. Either for a lower price, or just with bigger disk space (maybe SSD) at the same price.
I've gone 100% digital this gen and I'm not going back, so the bluray drive for me is just a paperweight.