Seconded.Dear god, no, I hope that if there's plans for a sequel it will NOT be a MMO. I hate those freaking things with the passion of a thousand fiery suns.
Regarding BG2's collector's edition, I remember getting it as a gift as soon as it came out (hadn't even heard of BG1 by then, and I thought "hum, what's this? Kinda looks vaguely interesting", I was in for a ride!). So yeah, it might not make much sense that the Collector's Edition would come out so early, but in my opinion, it does, because it's "that special edition which special stuff in it, that edition that's kinda rare and that'll make your friends jealous" kinda thing. But, that's just me. I think that's very distinct from later versions, the ones that come out long after the initial release, such as the GOTY versions.