Our girls were on a quest to find Daisy on our trip last May and we were told that the Lilo & Stitch breakfast was the only place to meet her (now the Mickey breakfast). So, we booked the breakfast, arrived, and were told after seated that Daisy "had to go somewhere else that day" and wouldn't be at the breakfast but otherwise she is always there, but Minnie would be coming soon. So, we waited around for Minnie, and waited and waited and waited, only to finally be told that she was "needed at Mickey's house" and wouldn't be coming.
Thankfully the girls had awesome interaction with the other characters but they were a little bummed about missing Daisy. We tried one more time on our August trip, and found her back at the breakfast. They got a quick photo with her and that was it...she just walked away. Stitch, Pluto and Goofy were MUCH more entertaining and fun at the breakfast and that's who the girls still talk about....BUT, they did finally get to meet Daisy so we could cross that off our "must do" list. Condering the little amount of interaction from Daisy, we probably should have just stuck with pointing her out to them at the Celebrate Street Party!
From what I hear, she is still a part of that breakfast even though it's now Mickey's.
Good luck!