First things first, a sequel has not officially been announced however Hugh Jackman is very keen on bringing back PT Barnum should he be asked. Quotes from the interview are below.
“If a genuine opportunity came up where it felt like the right thing to do, then yep, I’d get the top hat back out.”
“But it’s clear to me and to everyone that people love these characters. I loved this movie, I loved this character and it was one of the great joys of my life.”
Having come from a musical background before his movie career took off it is clear Jackson is not just saying what people want to hear.
If a sequel does appear there will be a large queue of people outside the cinema ready to see the return.