For those with no sci-fi reservations that want to go on your trip, you'll probably have to utilize the walk up wait list at this point, though a couple reservations may open here or there.
For the Walk Up List, that opens up around 5 or 6am and typically fills up between 10 and 11am for the day, so make sure you get signed up as soon as you get to the park to still get an opportunity to eat there!