I think this might actually be good. Always wondered what happened to her guests. Did she do them in her self? Did they trip on the lion while drunk? So many unanswered questions!
A prequel would be the life and times of her now dead guests.
Don't get me wrong, a sequel would be cool too! Perhaps we could get a glimpse into Miss Sophie's legacy after she passes away, and how her butler needs to contend with her snarky relatives who wants to get rid of that infernal tiger on the floor, only to replace it with an even larger bear pelt.