Will sprinting allow me to keep the curves and lose fat?

if ur talking about running sprints?...(racing) then I know it will lose the fat...but I dunno anything about the curves...

Will sprinting allow me to keep the curves and lose fat?

Whether you're doing HIIT or endurance training (assuming your diet is sorted), your body will decide where it wants to get rid of the fat from and in what proportions. So the answer is maybe; it depends on your genetics. Only way to find out is to do it and see what happens.