I only have two canon designs for the AU, One for Warden and one for Sanser. Partially because I don't know how to draw Ash (he's the only inmate I ever feel like drawing) that well, and partially because I literally don't know how anyone else's appearance would change.

Generally, in this AU, the inmates are nicer. Not incredibly nice, because, c'mon, it's Superjail, I don't think the inmates could ever be very nice, but a bit nicer. They act paternally (though Alice acts maternally) towards Sanser, like they did in the episode she first appeared in. Ash especially acts like Sanser's parent, as he was canonically the first inmate to be nice to her. >! There's also slightly less murder around her. Either that, or they teach her how to do it, because she's 22 now and they all think she's used to it. !<

I'm not quite sure about how Jailbot, Jared, or The Twins interact with Sanser though, because they never interacted with her when she was alive.

Sanser looks a bit different. She gets sick a lot, so she usually wears a mask, and she grew her hair out and ended up giving herself longer bangs at some point. She calls Alice "mom" and Ash "dad".

Warden sometimes tenses up a bit whenever Sanser walks by because of what happened to him when Sanser was canonically alive. He also has a little scar because his inner child was put back in his head by The Doctor at some point. Though, things with him and Sanser aren't all that bad. At first, he didn't like her because she was taking all the attention away from him, but then he begrudgingly started talking to her 18 years later, and then he eventually started to like her as a friend, although he will never admit it. 

A little bit about my AU where Sanser's alive. [Long rant ahead!!]