Just to nip the idea of taking the GameCube online in the bud. If Nintendo don't fund it, EA aren't going to put the money into making one of their GameCube titles online. First of all they would have to get Nintendo interested, which isn't going to happen, then they would need permission, have to use a whole tonne of new server space (which again costs money) and they would be shooting for a market on the GameCube that doesn't sodding exsist (despite the fact that every online Nintendo fan will run around squeaking at the mere notion, be realistic here folks).
What would I like to see? A great plot and some really classic weapons are a must, something that you will remember forever for its sheer devastation, power or ingenuity. Great level design and multiplayer wouldn't go amiss either.
Trying to think of a witty signature after 'Hacker-gate'...