This is what I have been thinking.
1. Excactly the orginal gameplay
2. Same sound/graphics
3. They don´t have rights to use original 94 rosters anymore, so there has to be "roster share". Users can create any rosters they want and share them, like they do with FIFA for example. So there can be 94 rosters and Internation Canada Cup rosters etc...
4. Tournaments, Leagues, Cups, Playoffs, you name it. Everything possible included. Even Be a Pro. Online and Offline. It would be fantastic!
I am sure that all this would be quite cheap to create. Game itself already exist.
5€ from Xboxlive, Steam or PS Store.