I don't know what I think about this update, there are a few things that I'm quite conflicted about, but step-by-step:
The new movie wasn't bad, but all in all it felt too short. It was like "Here, take Alice and this is it".
The new character ... I can't say I'm a big fan of Vicky, but she's also not that bad that I could say I already hate her. What I do "hate" is the way the Lisa path is going. It felt like the we were heading towards a romance, even without sex at first I would've been fine with it, but it also makes sense that we don't just reset everything that we already achieved, but instead work on things that we don't have now and that's the romance part ... which we still don't have and honestly it feels more like we made at least half a step back. I've always seen Lisa as the innocent cutie that we can learn things with and maybe she was always supposed to be a closet pervert which I'd also be fine with, but if something like a step towards romance is advertised at least make baby steps towards it, it seems more like another sharing thing like Alice/Kate. Don't get me wrong, I like the characters as they are since they're all interesting and different.
I also don't really see the need to introduce Vicky if you could bring Olivia into this route. It doesn't have to be like "Well, look who's here now", but more like that Alex and Olivia break up and Lisa now realizes that Alex is a jerk, she feels sorry for Olivia and they slowly got closer until she brings her over one day or something like this. It's just a basic idea which could've been introduced, I'm sure someone could come up with something more refined.