User blog comment:The Shadow User/Is there a chance for Romance?/@comment-730941-20101014104137/@comment-1746153-20101015064021

It's doesn't seem to be a problem for BioWare to record a lot of dialogue, even that doesn't make it into the game. Besides, the article on ME3 says that its story will diverge "into wildly different conclusions based on the player's actions in the first two chapters."