I would love to see NEC/Hudson do some kind of limited reproduction all via the internet. I would totally buy a SGX/DUO/ACD hybrid system and I'm sure many others would too. Obviously the only way to do it, is via the internet in a limited production run because there is not a chance in hell that it would work through normal retail stores.
But I think for people like us and other retro gamers a hybrid system that is brand new freshly manufactured would certainly appeal to us. Then perhaps do some reprints of some titles. Certainly in limited numbers and via the internet it wouldn't be a loss.
Then who knows, maybe some retrogamers that are also into homebrew development could actually put out new games. But I don't think anyone's foolish enough to think you could put this in stores like Best Buy. The general consumer can't appreciate such things. They just buy what MTV or someone else tells them.
Anyway, as silly as it seems, I would buy a SGX/DUO/ACD hybrid, and I'd love to see versions of games of that time developed for it. Perhaps a Mortal Kombat (1992/1993, not MK2) SGX & ACD port. The added graphics capability of SGX plus the memory of the ACD and storage/audio of the CD. That sounds like a nice potential port to me. Even though it does seem silly considering I have a Mortal Kombat arcade PCB board about 3 feet from me right now. But hey, I'm a retrogamer and it's fun to dream right?