One of the regular CMs at Splash told me that Johnny and family usually is always at WDW since he has younger kids, and he usually hangs out in ToonTown and Fantasyland. I believe it was in March, maybe the beginning of April, and there were rumors that Depp & Co. were in the Parks. I went about my normal routine of positions at Splash and I was on my break backstage at Splash and lo and behold - there he was, walking around with some tour guide.
I wasn't too close, and didn't get to talk to him, but he was there by himself. He was probably backstage to avoid the crowds around Thunder and Splash.
So now I'm hoping and praying that he'll be there when the 3rd movie opens up!!!