Back when my dreams were more vivid, yes I regularly dreamed of my body matching my gender. I remember waking up as a kid and being depressed when I realized that it was a dream. So before, during, and this far (15+ years) into my transition I would say yes. My dreams nowadays are way more nebulous than they used to be, but I do occasionally have dreams where I feel more in line with my body, I don’t remember specifics though just that I feel far more at peace with it.