Homonymous hemianopia, could vision get restored?

Unlikely: This is usually the result of a vascular catastrophe or stroke in the occipital lobe of the brain. If persistent, there is little likelihood of improvement. There are occupational therapist s who can help you cope with this but reversal is not possible.

Unlikely: This condition is usually due to a stroke or vascular event in the occipital cortex which is the visual information processing part of the brain. We allow about 6 months for whatever recovery is likely and after that the changes are permanent. Check this out with a neuro-ophthalmologist.