Will skin heal back over scabbed areas of nasal septal cartillage?

Raklian, What ever is split on your nose is not evident in your photos but regardless just keep it clean and moist and it will heal. See a MD if it isn't healed in a week or two. Once it has healed I would guess that revision could be intertained but only after letting the inflamation settle...

You may have an active depressor nasii muscle of the nose.  The best thing to do is to meet with a Board-Certified plastic surgeon who will accurately examine your nose, start a discussion concerning your wants and needs, create a simulation that will show you what your nose could look like ...

There are no side view pictures of your nose and the quality of the photos is poor.  But just looking at what you submitted I think you could get a "slimmer" more streamlined nose by conservative removal of tip cartilage along with grafting of the nostril to make the nostril ...