Interestingly, newer models are suggesting that hurricane activity will decrease with global warming.
Basically, as the temperature rises, the colder regions will increase in temperature the most - thus raising the global averages. Because of this lack of heat disparity, less transfer of usable energy, there will be fewer hurricanes and they think they will be weaker in general.
I'm on a tablet, but I can dig out the study (I think), if you want. Google will guide you, otherwise. I was just reading this a month or so back. From a physics viewpoint, it makes sense. Then again, I'm a mathematician and not a climate scientist.