Well, the ride opens on August 15 - if you visit after that, it'll be running just like any regular ride. From August 1-3, there are previews for annual passholders.
Other than that, they will probably continue to open it from time to time for test-and-adjust sessions, which they have had after 4 pm on weekdays three out of the last four weeks. If that happens while you are there, all you do is show up and join the line.