I went to my local mall on the day it opened just to walk around and see what’s going on. The vast majority of the stores were closed with some signage indicating that they were opening later in the week. Only one local Asian food stand was open in the food court. The shoe stores were open, but not much else. There wasn’t many people there when I went, I just took a lap around the mall and left.
The local outlet mall’s website indicates that the Disney Store will open “soon”, but they have that for all of the closed stores. The World of Disney store at Disney Springs opens on May 27, so I doubt any of the other ones will open before then. I’d guess the outdoor outlet stores will open before the mall stores.