While there are very few 'Big Bang Theory' season 8 spoilers, there is a great possibility that much will be revealed on July 25 as the series writers attend the 2014 San Diego Comic-Con event. For the meantime, fans are eager to find out whether Sheldon took the train or not.

Buzzfeed recently asked Jim Parsons for an advice for his character to which he respondes: "I would advise Sheldon to do what it takes to keep Amy in his life - seems to me everybody irritates Sheldon at one level or another and, of all the people in his life, she appears to irritate him the least. Added to that fact that Amy seems to love Sheldon (despite everyone else's opinion that she shouldn't), and I just think Sheldon would be well-advised to not play fast and loose with her affection."

Despite his desire for Sheldon to not leave Amy, he previously told TV Line about his lack of idea regarding his character's appearance on 'Big Bang Theory' season 8: "I don't know if they know yet. They may know, but I really don't know if they do."

Executive producer Steve Molaro hinted that Sheldon might indeed need to leave in order to reassess his direction in life. As per Entertainment Weekly, his aim is to "chip away at Sheldon and break him down to the point where he just needed to leave to process everything."

As for Penny, she will be tying the knot with Leonard which is a perfect avenue for the introduction of Penny's mom. Actress Kaley Cuoco recently expressed her desire for Lisa Kudrow to pplay the role of her mom. Apart from 'Big Bang Theory' season 8 spoilers, viewers might likewise see a Penny with chopped locks.

Cuoco appears to love her new pixie haircut. She is hoping that producers will allow her to keep her hairstyle.

'Big Bang Theory' season 8 will air on September 22.