Hi Gina,
I find that
Extra Magic Hours are a great perk for staying at a Walt Disney World Resort hotel but, I'll admit it, while I often intend to make it out the door for that day's Morning Extra Magic Hours, I often fail to do so... It IS vacation after all, right?!
Your plan to experience 4 attractions in an hour might be a little bit too ambitious. It means that you're only setting aside 15 minutes per attraction to travel there, do the pre-show and then experience it. I think that a successful morning would include 3 attractions, max. I would recommend experiencing
Test Track first, followed by
Mission: SPACE (because it's right next door) and then heading over to
Soarin' if you have time or even including it among your party's FastPass+ selections for that day. I find that
Spaceship Earth's lines tend to decrease dramatically in the afternoon, so I would actually set aside time it for later in the day, rather than in the morning.
As an aside, not all attractions may be open during Extra Magic Hours. Furthermore, there is no opening date for the new version of Soarin' as of yet. Please check the
Disney Parks Blog regularly to make sure that it will be open and that its
new international flights will be taking place during your upcoming visit to Walt Disney World Resort.
Have a Magical Day,
Lynne