Will their parking garage hold the Holiday AND the Fantasy?
No way. Just with the Holiday the garage can be filled up. The least crowded I've seen it was last month and in that case there was half of the roof left open, maybe room for 50 cars at best. On our prior two times out of Mobile it sold out and they had to use the overflow lots.
I'm not sure the overflow lots could accommodate the vehicles for the Fantasy. The facility cannot support two ships permanently unless they do some additions.