None of the above, because the era of the system-seller as we know it is over. If GTA4, MGS4, and even the mighty Halo 3 failed to produce large lasting sales boosts, nothing else will. The industry just doesn't work that way anymore.
I do suspect that we'll see a week or two of elevated sales surrounding each of these games. But then, just as with every other big release or price drop we've seen with the HD consoles to date, hardware sales will crash and burn back to basically the levels they were before the release, indistinguishable from the current upward trends. If anything, these games will at that point simply fade into the gestalt: the overall catalog for which people get consoles, selling a little more for each individual game in it but not traceable to any one of them.
Complexity is not depth. Machismo is not maturity. Obsession is not dedication. Tedium is not challenge. Support gaming: support the Wii.
Be the ultimate ninja! Play Billy Vs. SNAKEMAN today! Poisson Village welcomes new players.
There is much to hate about modern gaming. That is why I support the Wii.