no need for that since there are people still coding or the C64 and Amiga
If teh games produced are any good, well, that depends on them :/
But I think there are LOTS of games that have not appeared in these formats, and could be easily ported (example #1: Puzzle Bobble. No, don't mention those 'orribel Amiga clones).
It just takes a couple of people to join up and get their arses down to convert these beauts