I was there then, and we had ADR's booked well in advance for everything. I would say there were lines for waits at all the places we ate at. I don't remember not waiting anywhere, even w/ ADR's. We waited for quite a while at Coral Reef. We also ate at O'hana's, LTT, Norway bfast, 1900 Park Fare, and Hoop de Doo.
We are big fans of the DDP. 2nd time to use it, and I wouldn't go w/o ADR's.
My neighbors aren't planners and are going the last week of June...they are planning to eat at table service rest. but won't make any ressies, good luck to them!