What we see in other themeparks across the world is that AP holders no longer have unlimited access, everyone needs a reservation. I'm sure there will be a few to try and get reservations for multiple days, but then it's first come first serve. I do believe that every park has or should have a max for AP holders and a max for day guests
What will be interesting is what will happen to the flow of guests during the day. When you have a park with lots of locals and therefore many AP holders is that around afternoon/ dinner time the park gets a bit busier for people coming in for a few hours after work. That's something you cannot do on a whim anymore for the coming months. Coordinating with friends with APs will probably more difficult, so my guess is that the evenings will be quieter than before.
Also interesting to watch is this video of TDR Explorer (one of the best English websites on the Asia Disney parks)