In fact it seems there already is one that has been started in https://github.com/somaen/fitd-residualvm
Yes, that's the same project I linked to above.
But remember, again, it's not going to make a difference in what I believe nor will it stop me from doing what I want to do.
Quite frankly, sir, while your enthusiasm is plainly evident, it's not exactly clear what you can
do except speculate wildly about things you know little about. That is not especially helpful for anyone.
If you want, you can learn to program and perhaps eventually reach a point where you can understand the existing Free in the Dark/Dream in the Dark code and expand on it further. Otherwise all you can really do is wait. (Certainly, no one would stop working on the project just because he thought somewhere down the line it might need to be burned to more than one disc. Things of that nature are simply not a concern at this stage.)
Could people at Eden Games/Mighty Rocket Studios/Pure FPS/Interplay/Atari or whoever is working under whoever could be owning the rights to AitD3, say, develop some kind of port of the game for the Dreamcast, since people are still making games for the Deamcast (yea, mostly homebrew games, but could a bigger studio make/release newer games for Dreamcast now under any kinds of circumstances?)?
I assure you with complete confidence there is almost zero chance of anything of the sort ever happening.