Carbon forks have rake, though it might not be the same rake as your current fork. If you were to buy a carbon fork, I think you'd want to be darn sure that the axle to crown race and trail measurements were the same as your current fork... assuming you want the bike to continue to handle the same way.
If you're happy with the steel fork, you could always buy another steel fork... or have a frame builder custom make one that duplicates the original fork.