I doubt it , Some of them are very warey of the Intellectual Property on these Games. The IP may still be worth something to
someone somewhere , what with all these mobile phone games and GBA & GP32 coming along , we could still see Speedball or the like on them I guess.
The GBA is being deluged with back catalogue games and 'remakes' from older snes/nes titles already !.Some of them should have stayed in the past!.
Those 'big' titles are bound to be like that , Its the other ones that just sit there gathering dust bytes that concern most retro gamers....