It seems that Jennifer Lopez’s uncertainty might be working against her as it is rumored that ‘American Idol’ executives are already looking at possible replacements.

While Lopez has admitted that she isn’t sure she will return due to her busy schedule, she might not even get the chance to make a final decision, states Celeb Dirty Laundry. It is rumored that Shakira and Shania Twain are being talked about as possible replacements. However, considering Twain will be starting a Vegas show in 2012, it might be hard for her to commit to ‘Idol.’ Who would you want to see as a new judge?