Hmmm, well classic and cult classic will be different. Valkyria Chronicles and No More Heroes I think will likely be cult classics simply because of the love lavished on them is not commensurate to their commercial success.
I think COD4 will be considered a classic, Wii sports will (love it or hate it) be considered a classic. MGS4 will be classic to MGS fans (like every MGS). Some depend on the future of the franchise. Dead Space COULD become classic but only if the series takes off like EA hopes it does. It's a kick ass game, and it is the first in a new IP that EA hopes to use to it's fullest, so it could potentially become the new Resident Evil, and if that happens it will be classic. If it falls to the way side, then it will just be a good game.
Sometimes it's hard to tell how history will favor games compared to the future (hype) and present (actually playing it). I think I picked a few out though.
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