Yes. Whoever wants to meet the ladies will have to be in line when it's time to go in. Pretty sure Dad doesn't want to meet them by himself, or maybe he does. He'd have to give up his place in line if he doesn't.
It means the pavilions and everything inside them open at 11.
However, because Akershus serves breakfast starting at 8 (do they ever serve it earlier?), you can walk past Mexico and into Norway from 8 to 11. You can't walk past Norway until after 11. Used to be nothing else in the pavilion was open except Akershus.
Because of the popularity of this meet & greet, it will be the only thing in Norway besides Akershus that is open before 11.
Expect a stream of guests (many of which will probably run although they will be told not to) converging on Norway as soon as the park opens at 9 (assuming it's not an extra magic morning). The only people in line right at 9 will be the ones who went to Akershus. Or made a reservation at Akershus and then paid $10 per person because the whole party went and got in the Anna/Elsa line instead.
On an Extra Magic hour, I guess they open to resort guests at 8? So any resort guest willing to get there at 8 will be able to charge over to Norway and get in line. They'll then have to wait an hour. An hour wait beats the three hours it used to be if you got in line at 8. If you're not planning on going in until 9, you're going to have a longer line to wait in than you would have on a non-Magic hour day. They don't open WS for extra magic mornings - just Future World - so the only thing actually open in Norway at 8 will be Akershus.
Those coming in from the International Gateway will have to head through Britain and Canada (which will still be closed although you can walk through), cut across the plaza in front of the lagoon, pass Mexico and head into Norway.