Rename mounted home directory

I have the following situation, where I have a folder /new_home, and a mount in etc/fstab: /new_home /home none bind 0 0 So that means that /home does exist, and is a mount point, and /new_home is a directory that contains the actual files. Now I would like to get rid of the mount and rename /new_home to /home. The problem is, I cannot unmount or move /home because I am afraid that might crash the system / GUI. Is that possible?