Will American Idol keep going if Simon Cowell leaves the show?

Simon Cowell told Mirror he's considering leaving American Idol, and cited workload as the reason:

"there is a point where I am not sure we can keep this schedule up. It takes longer and longer to make these shows because you have to put more into them, and I am not sure we can sustain me doing three shows a year, with the record label and the TV production company. Most people do one show a year and I do three and they involve a lot of travelling. One may have to go. I don’t know which one. That is the problem, I like all of them. I can’t imagine not doing Britain’s Got Talent and I can’t imagine not doing X Factor. But I guess America is more likely to go because I have got one year under contract. Maybe that will be the end.”