There was a limit question in 2007, the one with the integral in the numerator and you one had to use Leibnitz formula to get it. But to be able to use it one required the L'Hospital Rule first. But yeah you could say that most of them can be done by L'Hospital Rule alone but sometimes the limit questions can be very very tough but i dont think they will be asked coz they are mostly subjective but still dont think that the questions from limit wont be asked.