Dear Mr. Heller,
this is your lucky day! The reveal of Red John is the most crucial episode and will decide the fate of the series and all your staff. It will either bring back a great show to new heights or crash it into the ground. It will make you a TV legend or look like a complete retard.
I guess by now, you probably know what the leaked episode will be.
So just stop it. Halt the Sunday episode and remake it.
Give us a true evil genius as Red John, give us a long dialog with Jane, give us the James Bond moment of the villain making the mistake to explain himself before he wants to kill the hero. Give us a lot of smart talk and flashbacks explaining what was really going on. Show us some charisma of evil. Give us the story of Red John and what made him Red John. And give us a mentalist who was even smarter.
Thank you.
P.S.: How about printing fan t-shirts with the text "I followed Red John for 5 years and all I got was a pigeon"?