I think basicly it comes down to what people are going to spend $$ on. Yes a lot of people out there don't really know what a real hockey game should have in it cause they have never actually played hockey in real life.
I say, make a new hockey game for PC or whatever that plays pretty much like NHL '94 and I will buy it, my friends will buy it and anyone they know will buy it. Bottom line is always $$.
I think it would be possible to play ROMS on the actual Sega CD if you had the source code for each game. Check out this site: http://www.retrodev.com/