The Orlando Informer is reporting that Universal Orlando is preparing for an onslaught of visitors to the new Diagon Alley and Hogwarts Express linking Universal Studios to The Wizarding World of Harry Potter in Islands of Adventure.
When The Wizarding World of Harry Potter first opened at Islands of Adventure, the crowds stretched from the back of the park, through the front gate and all the way over to Universal Studios. Traffic was blocked along the nearby interstate for six hours that day.
Apparently with those memories in mind, Universal is prepping for the grand opening with plans of limiting patrons to one ride per day between the parks aboard the Hogwarts Express during peak time. Which will be every day this summer I suspect.
HERE are the discussions on this at the Orlando Informer Forum.