I walked through the festival center and past the new meet area today.
All else aside, the wait for Mickey and friends (I presume Minnie and Goofy since they were gone from their spots) was 25 minutes and already had a ton of people standing outside in the heat. I didn't get to see how much of the queue went inside, but the entire outdoor switchback was full.
It's an entirely new building, right? Not a retrofit? It seems like really poor planning for it to not even be able to handle a twenty five minute line without having a huge segment of that queue wait outside.
I know Red Carpet Dreams (Hollywood Studios Mickey and Minnie spot) also has an outside queue, but I'm sure guests would rather they not copy that.