The Weather Channel released a video story a few days ago discussing what a wetter Sahara Desert in the future might mean for the Atlantic tropical season. The current impact of Saharan dust on the development of hurricanes definitely affects the early part of the Atlantic season because the dust stabilizes the atmosphere, resulting in a lack of strong storms early in the year. If the Sahara becomes wetter, as some climate models predict, then there might be fewer dust plumes over the Atlantic Ocean during the early part of hurricane season, which could potentially increase the number of early season storms. Of course, there are other factors such as sea surface temperature that will also affect the likelihood of storm development, and those will also need to be taken into account when thinking about future storm climatology.
