Losing weight will have a significant positive impact on your A1C number. Get the extra weight off and don't be surprised if your A1C number drops back to normal. The trick with this is that just because your A1C is back to "Normal" non-diebetic level doesn't mean that you can revert back to your old diet and work out habits. What you are doing now with an improved diet and workout IS what is keeping your A1C down.