Well I should certainly hope so. You should talk to Sol Falling about that. He's got this huge theory about how Shirley is the only girl in Code Geass who could have saved Lelouch from his calloused demon path and could have made him understand love. But yeah, one of the great unsolved mysteries is what role Shirley would've played if she'd survived, but I like to think she'd have a chance with Lulu.
BTW, don't be afraid to post on the forum. I never see you on there. Don't worry, they don't bite..................usually