The possibility of reinnervation depends on the type of injury. If a transected nerve is growing towards a target it can take well over a year. But with reinnervation people will complain about odd sensations, pins and needles etc. Not no sensation at all, unless of course the nerve hasn't hit a distal target yet. Again, totally depends on the injury. Is it a feeling of the foot not being there from "within" the foot so to speak? Is your plantar sensation intact? For example, if you walk on surfaces with different textures barefoot do you pick up sensations of carpet or of grit on the hard floor, etc? Can you feel temperature differences if something warm or cool is applied to the foot? If the answer is no and this is a new symptom I would definitely look into it. Take any prior studies for comparison. I guess the big question is if signal is getting through.

My foot will often not feel like a foot. I know it is there, it is talking to me a lot about various things but it feels sometimes like a weird nervy thing I just happen to walk on. It does what I ask of it but only rarely feels normal. I am never unaware of it however. Sometimes I wish I were!
I hope you find some answers soon, Littlepaw