Yes...we were there last Sat., an EMH morning day, and we walked right on Soarin'.......you have to move quickly toward the Land though as soon as the park opens.....
You can usually get thru the Int'l Gateway whatever time the park opens. Since WS doesn't open until 11:00 you'll be able to walk through UK and Canada to get thru to FW. (the bridge to the right leading to France is roped off as well as the other side after Norway leading around the WS). This is how it is everyday so I'm sure it's the same for EMH.