If you mean can you lower your post-VFS pitch to pre-surgery pitch, the answer for me and I'm guessing for many others is no. However, as many others have said, pitch is only one part of the picture. You will still have all the nuances/inflections/gestures/prosody of your pre-surgery voice, just in higher pitch form. If you're not willing to learn, or relearn, how to speak in a female way, then you will still be gendered male.