There are 4 cruise terminals at Port Canaveral. When there has been more than one
DCL ship in port at the same time one was at the DCL terminal while the other used one of the other terminals. You can see the locations on the Port Canaveral website. One is next to the DCL terminal, a second across the turning basin from the DCL terminal and the third along the ship channel. (I watch the PTztv web cams way too often.) There is a 'map' of the port on the same page as the webcam.
I think that the ships will be safer out to sea in a calmer area. I am no expert but that seems the best scenario. In 2004 Port Canaveral was closed for several weeks because it was inaccessible due to silting in teh ship channel from the storms. They had to do some dredging before it was reopened.