As I updated my post in the other thread, it seems that they will be restoring grid power soon. If successful, then it sounds like they can restart the normal cooling systems instead of doing whatever jury rigged system they're using right now.
If the piping is intact.
If the pumps will run.
If the valves will open/close.
If the electrical power to the pumps is intact.
If the controllers for the pumps are intact.
If the intake supply to the pumps is/are intact.
If the operators can get to the manual valve handles.
There are probably a half-dozen more IFs involved.
Don't forget, there was a 9.0 earthquake followed by a 40' wall of water and several explosions and lots of water and debris getting kicked around. Some damage may have occurred.
Still, it might help. I'm sure it will, eventually.