We are having our first Dolphin stay in 2 weeks. So excited

I have two questions for you guys...
1 - we've noticed that there is now a conference there 4 of our 7 days which wasn't there before. how will that affect us?
2 - our plan when we hit Epcot is to do Soarin right away with our 4 year old while the other parent takes the 18 month old on Nemo to wait

Since we will be entering at the International gateway, how does that work? Is there a rope drop there as well? Will we have trouble getting to Soarin from there?
Thanks for the help!