Most new scenes are related to Madeline: one drinking tea and a couple of them unlockable once you become her slave if you lost your last shard to her (yes, now you have fewer shards, you can't renew them at the lake, but you can lose them all and still continue). Katrina also has a couple of new scenes during enslavement if you lost your last shard to her. And that's basically it. As far as I've played, there's no new scenes with Narcissa, Mary, Rosita, and the tweens. Franzisca I'm not sure, probably not either. So yep, if you are interested in the two or three new scenes for Katrina or Madeline, you can play up to that point, but going past them won't reward you in any way. Hope this helped.