Darth Waller
Are you on the square?
I think they may be sold out. Considering I am the highest level frequent customer they have I doubt if they had rooms they wouldn't show up for me even if it was at some ridiculous price. Some may open up due to cancelations, but I could also save some points and stay somewhere down the street and use the shuttles.
Is there a list of the official hotels, if you search only one hotel shows up now.
Is this the site you went to?
https://www.starwarscelebration.com/Show-Info/Travel/Official-Hotels/
If you click on the "visit the reservation website" link, four hotels come up if you select 4/16-4/19. It drops to one if you select 4/15-4/19.
You may also try Travelocity or Hotels.com since there are quite a few smaller hotels in the area. They may start booking rooms since it's less than a year out now.