I could see them throwing out little easter eggs that reference Wonder Woman or Aquaman or something, I could see Harley making a cameo, I could see some shyt like that but actual references to plot lines no... I wouldn't think so nor should it. It'd be like Matt Reeves deciding to pick up where Burton left off with his Apes. Nah.
I don’t see him doing Easter eggs either. Not his style. Sure he could but that would actually surprise me.