No Murray or Phelps
It appears that while the show in Orlando, Florida is listing that both the Phelps twins and Murray are to be in attendance the 28th-31st, they have no knowledge of such event. So sorry to've gotten up any hopes to any of you in Florida. :(
This news comes from TLC, as they've said they've received communication from both parties, and that was their response. Thanks to them for checking up on this. ;)