Interesting. Personally I think if that's the case and stores have copies of said game, they should just start selling it. I remember the first ME street date was broken by K-Mart here in Aus, which started a chain reaction, by the end of the day every store was selling it.
But will it be noticeable? The only way it would be is if there was banter between party members, which was to say the least poor in ME. I'm not really expecting the characters in ME2 to be as.... talkative as they were in DA. I expect he will get his quest, a bunch of dialogue after each mission and thats about it.