Will I need a lift after implant removal or will my breasts go back to their original shape / size? 310 cc submuscular (photos)

Wanting my 310 cc submuscular implants out. I do not want them replaced. What are the odds that my breast goes back to what it looks like before? I feel like I have a bit more tissue at 27 than I did when I was very thin at 23 photos of now and preop. I breast-fed for three years and my breasts were pretty big and managed to go back down, hoping that’s the case here?