My 4yo is madly obsessed with the ride. Thankfully the alert and kind folks on this board had posted about the ride going down (from April 25 to June 27) so we headed out there as soon as the park opened on Wednesday and did 6 walk-ons in a row (and grabbed a FastPass for a 7th). Yes, he is sorely obsessed. I was almost hoping for the line to start building so he would move on to something else. Needless to say we have chosen to avoid Magic Kingdom since then this week.
It is definitely unfortunate to take the ride down during a window that includes the tail-end of Spring Break and the first few weeks of summer. Here's hoping they find a way to get it back up earlier than late June.