I consider Nieuwendyk for Lindros a lateral move, for the most part. Lindros has more upside than Nieuwendyk, but is more of an injury risk probably, even though Nieuwendyk missed about 20 games last season, so he's not likely to be 100% healthy, either. Losing Roberts sucks, though, and they haven't really replaced him.
I agree with people saying they'll probably end up being a lower seed in the East, but I wouldn't be totally surprised if they missed the playoffs. They'll be fine in a couple of years, though.